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Explainer: What Is Sustainability and Why Is It Important?

Explainer: What Is Sustainability and Why Is It Important?

It seems like nowadays, the term ‘sustainable’ is used all around us – from food packaging to clothing companies and even tourism. In fact, ‘sustainability’ was one of the most-searched terms in fashion in 2019, and Google searches for the term have been on the rise, illustrating the public’s growing interest in the topic. But what is sustainability exactly and why is it so important?

What Is Sustainability

The go-to definition when discussing sustainability is “meeting the needs of the present without compromising the ability of future generations to meet their own needs”. And though you may have heard this before, many people do not know the origins of this definition in particular. In 1987, the United Nations Brundtland Commission published this particular definition of sustainability in the Brundtland report , which called for a strategy that united development and the environment. Over the years, alternative definitions have emerged, but the Brundtland report’s 1980s take on the explanation is still commonly used. 

The ‘ Three Pillars of Sustainability’ is another popular framework used to describe what sustainable development is. This tool conveys that sustainability consists of environmental, social, and economic factors that are vital when discussing the topic:

  • Environmental sustainability is perhaps the most obvious of the three pillars, as it symbolises the importance of things like natural resources and biodiversity to support life on Earth. 
  • Social sustainability places importance on social structures, well-being, and harmony; all factors that poverty, wars, and injustices can affect.
  • Economic sustainability describes the ability of an economy to grow. This is especially important in today’s societies, at a time when many sustainable initiatives require financing and a strong economic rationale. 

In order to find solutions to ongoing sustainability issues, it is imperative that we consider all three pillars.

what is sustainability; why is sustainability important

You might also like: We Need Sustainable Food Packaging Now. Here’s Why.

What Are the Planetary Boundaries And How Do They Relate to Sustainability?

The concept of planetary boundaries (PB) is focussed on nine aspects that humanity needs in order to thrive in the future. This idea was developed in 2009 by the Stockholm Resilience Centre and other groups: “ We propose a new approach to global sustainability in which we define planetary boundaries within which we expect that humanity can operate safely. Transgressing one or more […] may be deleterious or even catastrophic due to the risk of crossing .”

At the time when this new concept was introduced, scientists believed that humanity had already transgressed three boundaries, and was rapidly approaching several others. In 2022, a re-assessment of the PBs by fourteen scientists concluded that humanity had transgressed additional boundaries, relating to freshwater and environmental pollutants in particular.

nine planetary boundaries.

The PBs have been widely cited in sustainability literature over the last decade, and provide an illustrative tool to track and evaluate how we are depleting the Earth’s valuable ecosystem services and precious systems. Though the tool is mainly environmentally focused, it has informed various policies and practices, including the World Business Council on Sustainable Development’s Action 2020 Strategy. In turn, this has had a knock-on effect on social and economic aspects of global policy and governance, including “financial investment, food, textiles, building, technology and household goods sectors”. 

You might also like: Sustainable Alternatives to Fast Fashion

The Sustainable Development Goals (SDGs) 

In 2015, the 2030 Agenda for Sustainable Development was adopted by the UN Member States. One of the most well-known elements of this were the 17 Sustainable Development Goals (SDGs) which set out various goals that the international community must work together to achieve – ranging from environmental and social to economic issues. 

what is sustainability; why is sustainability important

We cannot discuss the SDGs without first acknowledging their predecessor – the eight Millennium Development Goals (MDGs) – set out in September 2000. These goals ranged from halving extreme poverty to halting the spread of HIV/AIDS. By the end of the 15-year cycle of the MDGs in 2015, the UN established an even more ambitious set of goals – the SDGs – to enter into force on 1 January 2016. While not all of the MDGs were met globally, significant progress was made in several areas.

The SDGs have been continually monitored and provide key benchmarks for us to understand how sustainability is being achieved worldwide. Overview reports are regularly published and comment on the nuances that significant events bring to achieving the SDGs (like the COVID-19 pandemic, for example). You can read the 2022 SDG Report here . 

You might also like: Why the Sustainable Development Goals for 2030 Are More Important Than Ever

Why Is Sustainability Important?

So far, we’ve discussed the different ways that sustainability is defined and the tools and metrics we have developed on a global scale to measure our impact on the environment, societies, and economies worldwide. But why is sustainability important? 

Here are a few reasons, although the list could go on for a lot longer: 

  • Sustainability joins social, environmental, and economic issues together throughout global discussions, ensuring that key elements do not get left behind. Focusing on aspects other than the environment alone ensures a fairer, more equitable discussion (as long as a diverse range of players is at the table). 
  • Sustainability opens up new conversations between a range of people with diverse skills and thought processes – for example scientists, sociologists, and economists all have key skills to enable humanity to thrive and sustain the Earth. 
  • The SDGs are an impactful way to evaluate our progress and have encouraged key ideas and strategies to flourish while remaining realistic about the next steps and improvements.

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ENCYCLOPEDIC ENTRY

Sustainability.

Sustainability is the practice of using natural resources responsibly today, so they are available for future generations tomorrow.

Earth Science, Climatology

Sprinkler irrigation

Responsible use of water resources is an important factor to consider when discussing sustainability, especially in places like California, which are often subject to long droughts.

Photograph by the United States Department of Agriculture

Responsible use of water resources is an important factor to consider when discussing sustainability, especially in places like California, which are often subject to long droughts.

Think about the natural resources you used today. Perhaps you used water to bathe or texted on a cell phone with copper , zinc , and other precious metals inside. Everything we use comes from natural resources. However, many resources are being depleted faster than they can be replaced. Sustainability is the practice of using natural resources responsibly, so they can support both present and future generations.

Forests are one natural resource that sustainability groups are focused on conserving. Forests made up about 30 percent of Earth’s land mass in 2015, but that number is at risk of decreasing. In 2018, studies showed that approximately 18 million acres of trees are cleared each year for lumber or agriculture. Deforestation destroys the habitat of other important organisms, including fruits, animals, and mushrooms that humans use for food or medicine. Deforested land also increases soil erosion , limiting the productivity of tree growth. The goal of sustainable forestry is to preserve forest ecosystems. Sustainable practices include planting new seedlings in deforested areas and reducing the number of trees cut down each year.

Especially as the human population grows, it is critical that we reduce our depletion of forests, precious metals, and other natural resources. The world population is expected to increase from 7.6 to 9.8 billion people by the year 2050. To decrease our dependency on fossil fuels, many scientists are researching renewable energy sources. The United States military is testing a vehicle fuel made from algae rather than petroleum . And concerns over freshwater sustainability have led to the development of rainwater harvesters, desalination machines, and even more incredible inventions. A European company has produced a drinking straw that filters bacteria, so people can safely drink water from contaminated ponds and lakes.

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What Is Sustainability and Why Is It Important?

What Is Sustainability and Why Is It Important?

Sustainability is a broad discipline, giving students and graduates insights into most aspects of the human world from business to technology to environment and the social sciences.

Define Sustainability

The definition of “sustainability” is the study of how natural systems function, remain diverse and produce everything it needs for the ecology to remain in balance. It also acknowledges that human civilization takes resources to sustain our modern way of life (1) . There are countless examples throughout human history where a civilization has damaged its own environment and seriously affected its own survival chances (some of which Jared Diamond explores in his book Collapse : How Complex Societies Choose to Fail or Survive (10) ). Sustainability takes into account how we might live in harmony with the natural world around us, protecting it from damage and destruction.

Balancing Resource Use for a Greener Future

We now live in a modern, consumerist and largely urban existence throughout the developed world, and we consume a lot of natural resources every day. In our urban centres, we consume more power than those who live in rural settings (2, p3-4) and urban centres use a lot more power than average, keeping our streets and civic buildings lit, to power our appliances, our heating and other public and household power requirements. That's not to say that sustainable living should only focus on people who live in urban centres though, there are improvements to be made everywhere - it is estimated that we use about 40% more resources every year than we can put back and that needs to change (3, p2) . Sustainability and sustainable development focus on balancing that fine line between competing needs - our need to move forward technologically and economically, and the needs to protect the environments in which we and others live.

Sustainability is not just about the environment (4) , it's also about our health as a society in ensuring that no people or areas of life suffer as a result of environmental legislation, and it's also about examining the longer term effects of the actions humanity takes and asking questions about how it may be improved (2) .

History of Sustainability

Humans have, since the Neolithic Agricultural Revolution and maybe even before then, been a consumer rather than a replenisher of environmental resources. From hunter-gatherer societies that moved into an area to use up its resources in a season before setting up camp or moving on, only to return the following year to do the same, the development of a surplus economy saw permanent settlements. Slash and burn farming replaced natural wilderness often with uniform crop plantation (11, p2483) and camps gave way to settlements, then eventually villages, towns and cities which would put pressure on the environment.

Sometimes, the environmental pressures forced people into making these changes in the first place (growing human population being one of those pressures) and often eventually they had to move on to somewhere new where the environmental could better sustain them and their practices, or make further changes to their existing environment. There was no real concept of sustainable living, even if the people of the distant past understood that soil had a maximum fertility that could be exhausted and replenished with livestock.

It is widely acknowledged that many societies collapsed due to an inability to adapt to the conditions brought on by these unsustainable practices (10) . Whether that was introducing alien species that upset the balance of the ecosystem, cutting down too many trees at once or even a failure to adapt to natural fluctuations in the climate, we are far more aware in the modern world about the potential damage caused by human action. Cultural change often led to survival of those societies beyond what might have been expected under the circumstances (11, p2485) .

Though some Renaissance and Enlightenment philosophers would express concern about resources and over-population and whether these were sustainable in the long term, these people were not taken seriously at the time other than as a hypothetical question. It would take until the 20 th century before we would understand the impact that we could have on our environment. Environmental damage, pollution, destabilizing soils by cutting down trees, fossil fuels and other environmental issues led to a growing concern about the environment and whether we were or could damage our own ecosystem. The United Nations was founded after World War II and in 1945, UNESCO was established to promote the importance of human culture and of science (14) . Today, their remit is "to contribute to the building of peace, the eradication of poverty, sustainable development and intercultural dialogue through education, the sciences, culture, communication and information" (15) .

By the late 20 th century, the science of climate change was firmly established. We knew by the 1980s about the problems of the greenhouse effect and the destruction of the ozone layer (12) and coming very late in the century, an awareness of the notion that some of our resources - particularly fossil fuels - were finite and that we should make efforts to move to renewable methods of power. It was then that we saw the social, economic and scientific birth of the environmental movement.

The Three Pillars of Sustainability

In 2005, the World Summit on Social Development identified three core areas that contribute to the philosophy and social science of sustainable development. These “pillars” in many national standards and certification schemes, form the backbone of tackling the core areas that the world now faces. The Brundtland Commission described it as “development that meets the needs of the present without compromising the ability of future generations to meet their own needs" (6) . We must consider the future then, in making our decisions about the present.

Economic Development

This is the issue that proves the most problematic as most people disagree on political ideology what is and is not economically sound, and how it will affect businesses and by extension, jobs and employability (2, p4) . It is also about providing incentives for businesses and other organizations to adhere to sustainability guidelines beyond their normal legislative requirements. Also, to encourage and foster incentives for the average person to do their bit where and when they can; one person can rarely achieve much, but taken as a group, effects in some areas are cumulative. The supply and demand market is consumerist in nature and modern life requires a lot of resources every single day (6) ; for the sake of the environment, getting what we consume under control is the paramount issue. Economic development is about giving people what they want without compromising quality of life, especially in the developing world, and reducing the financial burden and “red tape” of doing the right thing.

Social Development

There are many facets to this pillar. Most importantly is awareness of and legislation protection of the health of people from pollution and other harmful activities of business and other organizations (6) . In North America, Europe and the rest of the developed world, there are strong checks and programs of legislation in place to ensure that people's health and wellness is strongly protected. It is also about maintaining access to basic resources without compromising the quality of life. The biggest hot topic for many people right now is sustainable housing and how we can better build the homes we live in from sustainable material. The final element is education - encouraging people to participate in environmental sustainability and teaching them about the effects of environmental protection as well as warning of the dangers if we cannot achieve our goals (7, p7-12) .

Environmental Protection

We all know what we need to do to protect the environment, whether that is recycling, reducing our power consumption by switching electronic devices off rather than using standby, by walking short journeys instead of taking the bus. Businesses are regulated to prevent pollution and to keep their own carbon emissions low. There are incentives to installing renewable power sources in our homes and businesses. Environmental protection is the third pillar and to many, the primary concern of the future of humanity. It defines how we should study and protect ecosystems, air quality , integrity and sustainability of our resources and focusing on the elements that place stress on the environment (6) . It also concerns how technology will drive our greener future; the EPA recognized that developing technology and biotechnology is key to this sustainability, and protecting the environment of the future from potential damage that technological advances could potentially bring (1) .

What are the Primary Goals of Sustainability?

The sustainable development professional network thinks, acts and works globally.

In 2012, the United Nations Conference on Sustainable Development met to discuss and develop a set of goals to work towards; they grew out of the Millennium Development Goals (MDG) that claimed success in reducing global poverty while acknowledging there was still much more to do. The SDG eventually came up with a list of 17 items (8) which included amongst other things:

  • The end of poverty and hunger
  • Better standards of education and healthcare - particularly as it pertains to water quality and better sanitation
  • To achieve gender equality
  • Sustainable economic growth while promoting jobs and stronger economies
  • All of the above and more while tackling the effects of climate change , pollution and other environmental factors that can harm and do harm people's health, livelihoods and lives.
  • Sustainability to include health of the land, air and sea

Finally, it acknowledged the concept of nature having certain rights - that people have stewardship of the world and the importance of putting people at the forefront of solving the above global issues (9) through management of the environment and of consumption (for example, reducing packaging and discouraging food waste as well as promoting the use of recyclable materials).

Essential Skills for Sustainability Graduates

The core skills with which environmental science graduates leaves college or university are highly sought after, especially in a modern world looking to drastically reduce carbon emissions and discover and develop the technologies of the future. Sustainability draws on politics, economics and, philosophy and other social sciences as well as the hard sciences.

Sustainability skills and environmental awareness is a priority in many corporate jobs at graduate level and over as businesses seek to adhere to new legislation. Therefore, Sustainability graduates will go into many fields but most commonly civic planning, environmental consultancy (built and natural environment), agriculture, not for profit, corporate strategies, health assessment and planning, and even into law and decision making. Entry-level jobs are growing and over the coming years, bachelors graduates can expect more and more options and opportunities.

Bachelor's Degrees in Sustainability: A Gateway to Diverse Opportunities

A sustainable future.

It is not yet clear what our sustainable future will look like but with emerging technologies and the improvement of older cleaner fuel sources, many people now look to a post fossil fuel world - including businesses. Since the 1950s, we have experienced unprecedented growth including intensive farming, a technological revolution and a massive increase in our power needs (13, p2) putting even greater pressure and strain on the planet's resources. We are also far more aware of the plight of the developing world and that facing our planet as we now observe both natural and human-caused disasters and the effects that these can have on the ecosystems and on human population. It's vital that we develop new, cleaner technologies to cope with our energy demands but sustainability is not just about the environment.

The biggest social activism movement related to the social development side of sustainability, has been programs such as Fair Trade and the Rainforest Alliance in encouraging good farming practices while ensuring farmers who produce luxury goods such as coffee and cocoa receive a decent living wage (14) . Activist and sustainability professionals hope to remove trade barriers in future so that they may benefit everyone, contributing to the economic and social development core of sustainability while promoting good environmental practice (16) .

  • http://www.epa.gov/sustainability/basicinfo.htm
  • https://www.academia.edu/9294719/Urban_Sustainability_in_Theory_and_Practice_Circles_of_Sustainability_2015_
  • http://degrowth.org/wp-content/uploads/2011/05/Lorek_Sustainable-consumption.pdf
  • http://www.sd-commission.org.uk/pages/what-is-sustainable-development.html
  • http://epa.gov/ncer/rfa/forms/sustainability_primer_v7.pdf
  • https://www.iucn.org/resources/publication/future-sustainability-have-your-say
  • https://www.sustainabilityconsortium.org/2011/03/new-white-paper-social-sustainability-assessment/
  • https://sustainabledevelopment.un.org/content/documents/4538pressowg13.pdf
  • https://sustainabledevelopment.un.org/focussdgs.html
  • Diamond, J. 2005: Collapse: How Complex Societies Choose to Fail or Survive . New York: Penguin ( http://cpor.org/ce/Diamond%282005%29Collapse-HowSocietiesChooseFailureSuccess.pdf )
  • http://www.pnas.org/content/106/8/2483.full.pdf+html
  • http://assets.panda.org/downloads/living_planet_report_2008.pdf
  • http://www.histecon.magd.cam.ac.uk/history-sust/files/Big_Here_and_Long_Now-presentation.pdf
  • http://www.rainforest-alliance.org/work/agriculture
  • http://www.unesco.org/new/en/unesco/about-us/who-we-are/introducing-unesco/
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  • Guide to Parasitology - November 19, 2018
  • Deserts as Ecosystems and Why They Need Protecting - November 19, 2018
  • Conservation: History and Future - September 14, 2018

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What is Sustainability?

Sustainability is the balance between the environment, equity, and economy.

The most often quoted definition comes from the UN World Commission on Environment and Development: “sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs.”

In the charter for the UCLA Sustainability Committee, sustainability is defined as: “the integration of environmental health, social equity and economic vitality in order to create thriving, healthy, diverse and resilient communities for this generation and generations to come. The practice of sustainability recognizes how these issues are interconnected and requires a systems approach and an acknowledgement of complexity.”

Sustainable practices support ecological, human, and economic health and vitality. Sustainability presumes that resources are finite, and should be used conservatively and wisely with a view to long-term priorities and consequences of the ways in which resources are used. In simplest terms, sustainability is about our children and our grandchildren, and the world we will leave them.

Some other definitions of sustainability:

  • Definition from the Environmental Protection Agency
  • Resources defining sustainable agriculture from the US Department of Agriculture
  • Post from the Association for the Advancement of Sustainability in Higher Education regarding defining sustainability in the curriculum

If you are interested in more information, UCLA offers continuing education in sustainability, the UCLA Extension Sustainability Certificate Program .

Stay connected to UCLA Sustainability

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United Nations Conference on Environment and Development

sustainable development

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  • Salt Lake Community College Pressbooks - Introduction to Human Geography - Sustainable Development
  • Academia - Sustainable Development and its Dimensions

United Nations Conference on Environment and Development

sustainable development , approach to social, economic, and environmental planning that attempts to balance the social and economic needs of present and future human generations with the imperative of preserving, or preventing undue damage to, the natural environment .

How is biodiversity good for the economy?

Sustainable development lacks a single detailed and widely accepted definition. As a general approach to human development , it is frequently understood to encompass most if not all of the following goals, ideals, and values:

  • A global perspective on social, economic, and environmental policies that takes into account the needs of future generations
  • A recognition of the instrumental value of a sound natural environment , including the importance of biodiversity
  • The protection and appreciation of the needs of Indigenous cultures
  • The cultivation of economic and social equity in societies throughout the world
  • The responsible and transparent implementation of government policies

definition essay about sustainability

The intellectual underpinnings of sustainable development lie in modern natural resource management , the 20th-century conservation and environmentalism movements, and progressive views of economic development . The first principles of what later became known as sustainable development were laid out at the 1972 United Nations Conference on the Human Environment , also called the Stockholm Conference. The conference concluded that continued development of industry was inevitable and desirable but also that every citizen of the world has a responsibility to protect the environment. In 1987 the UN -sponsored World Commission on Environment and Development issued the Brundtland Report (also called Our Common Future ), which introduced the concept of sustainable development—defining it as “development that meets the needs of the present without compromising the ability of future generations to meet their own needs”—and described how it could be achieved. At the 1992 United Nations Conference on Environment and Development (also called the Earth Summit), more than 178 countries adopted Agenda 21, which outlined global strategies for restoring the environment and encouraging environmentally sound development.

Since that time, sustainable development has emerged as a core idea of international development theory and policy. However, some experts have criticized certain features of the concept, including:

  • Its generality or vagueness, which has led to a great deal of debate over which forms or aspects of development qualify as “sustainable”
  • Its lack of quantifiable or objectively measurable goals
  • Its assumption of the inevitability and desirability of industrialization and economic development
  • Its failure to ultimately prioritize human needs or environmental commitments, either of which may reasonably be considered more important in certain circumstances

Although the implementation of sustainable development has been the subject of many social scientific studies—so many, in fact, that sustainable development science is sometimes viewed as a distinct field—a number of public intellectuals and scholars have argued that the core value of sustainable development lies in its aspirational perspective. These writers have argued that merely attempting to balance social, economic, and environmental policymaking—the three “pillars” of sustainable development—is an inherently positive practice. Even if an imbalance of results is to a certain extent inevitable, it is better that policymakers at least attempt to achieve a balance. Abandoning the notion of sustainable development altogether, they argue, would likely worsen social, economic, and environmental conditions throughout the world, thus undermining all three pillars.

Despite widespread criticism , sustainable development has emerged as a core feature of national and international policymaking, particularly by agencies of the United Nations . In 2015 the United Nations General Assembly adopted the 2030 Agenda for Sustainable Development, which included 17 sweeping goals designed to create a globally equitable society alongside a thriving environment.

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Have a question?

What is “sustainability” is it the same thing as taking action on climate change, climate action is just one form of sustainability—a concept that asks us to see the big picture of what we are taking from the earth, and how our actions affect future generations..

March 30, 2021

You might have heard the word “sustainability” in conversations about climate change—as in a “sustainable economy,” or a “sustainable energy system.” In the context of climate change, this usually means changing our energy, transportation and other systems so that they don’t contribute to warming the planet. But sustainability is a broader concept than just preventing climate change.

“What's so interesting about sustainability, and why I've built my career around it, is that it's complex,” says Julie Newman, MIT’s first Director of Sustainability. “It involves people and the environment, extraction, disposal, use—so it's really looking at the complexity of the world and how humans interact with it.” From an environmental perspective, sustainability is concerned with the resources we take from the Earth and how we use them, with an emphasis on not exhausting what the planet can supply.

The other common thread in sustainability is a focus on how our actions today will impact the world tomorrow. “I see it as setting a vision for the future,” says Newman. This idea is also reflected in the United Nations’ concept of “sustainable development,” which is used to set global goals and direct international aid. The UN defines “sustainable development” as “development that meets the needs of the present without compromising the ability of future generations to meet their own needs.” 1 This definition goes far beyond just environmental concerns: it also looks at economic prosperity, water and food access, education, and other needs that contribute to people’s quality of life.

A warming planet is a major challenge for sustainability. Human activities that contribute to climate change are, by definition, not sustainable, as they alter the very planet we depend on for all our needs. But climate change also makes it harder to find sustainable solutions to other problems. “Shifting biodiversity and shifting climate conditions affect our food sources , rising sea levels , the way we design our cities , and more,” says Newman. Many challenges for sustainability both affect and are affected by the climate: for instance, a warming Earth will make it harder to grow enough food, 2 and clear-cutting forests to grow that food contributes to climate change. 3

As with climate action, sustainability can also be a lens for thinking about personal choices and behaviors. But Newman points out that no individual can live a “sustainable” life on their own. “People often assume that it’s just about solar panels, recycling, and biking,” she says. But unless governments, communities and businesses make it easy to, say, get to work and the grocery store by bicycle, or turn recycled materials into new products, these personal acts do not make for a sustainable system that can grow with the needs of the people it serves.

“The other biggest misconception about sustainability and climate change is that zero is the answer,” says Newman—whether that means zero waste, or zero carbon emissions. In fact, she says, sustainability is a balancing act, which aims to provide enough resources for people to live full, healthy lives, without compromising humanity’s future. “We really need to look at it through an ecological framework of understanding. What is it that we need to ensure we have for a balanced ecosystem that leads to thriving human health and environmental health conditions?”

It can be useful to keep the definition of sustainability in mind as we work on solutions to climate change. A good framing question for every decision about climate change might be: Is this action going to prevent people from enjoying a high quality of life in the future?

Read more Ask MIT Climate

1 United Nations Sustainable Development Goals: The Sustainable Development Agenda . Accessed March 30, 2021.

2 See our Explainer on Food Systems and Agriculture .

3 See our Explainer on Forests and Climate Change .

Kathryn Tso

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What Is Sustainability?

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What is Sustainability? How Sustainabilities Work, Benefits, and Example

definition essay about sustainability

Investopedia / Daniel Fishel

In the broadest sense, sustainability refers to the ability to maintain or support a process continuously over time. In business and policy contexts, sustainability seeks to prevent the depletion of natural or physical resources, so that they will remain available for the long term.

Key Takeaways

  • Sustainability is ability to maintain or support a process over time.
  • Sustainability is often broken into three core concepts: economic, environmental, and social.
  • Many businesses and governments have committed to sustainable goals, such as reducing their environmental footprints and conserving resources.
  • Some investors are actively embracing sustainability investments, known as "green investments."
  • Skeptics have accused some companies of "greenwashing," the practice of misleading the public to make a business seem more environmentally friendly than it is.

Accordingly, sustainable policies emphasize the future effect of any given policy or business practice on humans, ecosystems, and the wider economy. The concept often corresponds to the belief that without major changes to the way the planet is run, it will suffer irreparable damage.

As concerns about anthropogenic climate change, biodiversity loss, and pollution have become more widespread, the world has shifted to embrace sustainable practices and policies, primarily through the implementation of sustainable business practices and increased investments in green technology .

3 Pillars of Sustainability

The idea of sustainability is often broken down into three pillars: economic, environmental, and social—also known informally as profits, planet, and people.

In that breakdown, the concept of "economic sustainability" focuses on conserving the natural resources that provide physical inputs for economic production, including both renewable and exhaustible inputs.

The concept of "environmental sustainability" adds greater emphasis on the life support systems, such as the atmosphere or soil, that must be maintained for economic production or human life to even occur. In contrast, social sustainability focuses on the human effects of economic systems, and the category includes attempts to eradicate poverty and hunger, as well as to combat inequality.

In 1983, the United Nations created the World Commission on Environment and Development to study the connection between ecological health, economic development, and social equity. The commission, then run by former Norwegian prime minister Gro Harlem Brundtland, published a report in 1987 that has become the standard in defining sustainable development.

That report describes sustainable development, or the blueprint for attaining sustainability, as "meeting the needs of the present without compromising the ability of future generations to meet their own needs."

In business contexts, sustainability refers to more than just environmentalism. Harvard Business School lists two ways to measure sustainable business practices: the effect a business has on the environment, and the effect a business has on society, with the goal of sustainable practice being to have a positive impact on at least one of those areas.

Corporate sustainability emerged as a component of corporate ethics in response to public concerns of long-term damage caused by a focus on short-term profits.

This view of responsibility encourages businesses to balance long-term benefits with immediate returns, and the goal of pursuing inclusive and environmentally sound objectives. This covers a broad array of possible practices . Cutting emissions, lowering energy usage, sourcing products from fair-trade organizations, and ensuring their physical waste is disposed of properly and with a smaller carbon footprint would qualify as moves toward sustainability.

Companies have also set sustainability goals such as a commitment to zero-waste packaging by a certain year, or to reduce overall emissions by a certain percentage.

Many corporations have made such sustainability promises in recent years. For example, Walmart Stores, Inc. ( WMT ) has pledged to reach zero emissions by 2040. Morgan Stanley has pledged net-zero "financed emissions" by 2050. Google has pledged to operate carbon-free by 2030.

The push for sustainability is evident in areas such as energy generation as well, where the focus has been on finding new deposits to outpace the drawdown on existing reserves. Some electricity companies, for example, now publicly state goals for energy generation from sustainable sources such as wind, hydropower, and solar.

Because these policies tend to generate public goodwill, some companies have been accused of " greenwashing ," the practice of providing a false impression that makes a business seem more environmentally friendly than it is.

Cost Cutting

Moreover, many companies have been criticized for cost-cutting measures that make it harder to evaluate their sustainability. For example, many companies might move some parts of their business to less-regulated markets, such as by offshoring production to obtain cheaper labor. This can make it harder to assess the costs of production on workers and the environment.

Sustainability practices "significantly affect" the offshoring activities of multinational corporations, according to an examination of data from 1,080 multinational corporations.

Challenges Surrounding Business Sustainability

The switch to sustainability can be difficult. The Santa Fe Institute outlines three major impediments for firms seeking to improve their environmental impacts: First, it is hard to actually understand the impact of any individual firm. Second, it is difficult to rank the environmental impact of some activities, and finally, it is difficult to predict how economic agents respond to changing incentives.

Sustainable investing surveys over the past couple of years have suggested that half (or in some cases, more than half) of investors say that sustainability is "fundamental" to investing strategy.

Not everyone concerned with investments shares the enthusiasm. In July 2021, for instance, Securities and Exchange Commission (SEC) Commissioner Hester Peirce argued that not only would environmental, social, and governance (ESG) disclosure mandates violate the agency's authority, but it may also "undermine financial and economic stability."

According to Peirce, the "inherently political" sustainability metrics were "unabashedly" created to direct capital toward certain businesses. In response to public comments and regulatory pressure to look into such mandates, Peirce said that it would be a violation of the SEC's "historically agnostic approach" to regulations.

Eiji Hirano, a former chairman of the board of visitors for Japan’s Government Pension Investment Fund, has said that there's a bubble in ESG investing and that the fund needs to rethink its ESG investments, according to interviews with Bloomberg News .

Benefits of Business Sustainability

In addition to the social benefits of improving the environment and elevating human needs, there are also financial benefits for companies that successfully implement sustainability strategies. Using resources sustainability can improve the long-term viability of a business concern, just as cutting waste and pollution can also help a company save money.

For example, using more efficient lighting and plumbing fixtures can help a company save on utility bills, as well as improve its public image. There may also be government tax incentives for companies that adopt certain sustainability practices.

Sustainability can also make a company more attractive to investors. A 2019 HEC Paris Research paper showed that shareholders value the ethical dimensions of a firm so much that they are willing to pay $.70 more to purchase a share in a firm that gives a dollar or more per share to charities. The study also revealed a loss in valuation for firms perceived as exercising a negative social impact.

Based on interviews with senior executives across 43 global investing firms, Harvard Business Review has argued that the perception among some business leaders that environmental, social, and governance issues are not mainstream in the investment community is outdated.

The "sea change" in investor attitudes described by Harvard Business Review draws on the increased commitments of investors. The Principles for Responsible Investment, a United Nations-supported effort to bring these issues into investing, had 63 investment companies with $6.5 trillion in assets under management that committed when it launched in 2006. In 2018, it had 1,715 companies with $81.7 trillion in assets.

While it's tempting to support companies that seem environmentally friendly, some companies are less sustainable than they seem. This use of misleading advertisements or branding to create a false impression of sustainability is sometimes called " greenwashing ."

Creating a Sustainable Business Strategy

Many corporations are seeking to integrate sustainability practices into their core business models. Companies can adopt sustainability strategies in the same way that they develop their other strategic plans .

The first step to integrating sustainability practices is to identify a specific weakness shortcoming. For example, a company might determine that it generates too much waste , or that its hiring practices are causing harm to the surrounding communities.

Next, the company should determine its goals, and identify the metrics it will use to measure its achievements. A company might set an ambitious target for reducing its carbon footprint, or set a specific percentage goal for diversity hiring. This will allow the company to determine objectively if its goals have been met.

The final step is to implement the strategy and assess its results. This requires continuous re-evaluation, as a company's goals may change as the company grows.

There are some common pitfalls for companies aiming for sustainability. One of them is the knowledge-action gap: even though many executives set sustainability as one of their core business values, few of them take concrete actions to accomplish sustainability objectives.

Another is known as the compliance-competitiveness gap. While improving sustainability metrics can make a company more competitive in the market, these goals should not be confused with the mandatory compliance requirements that a company must adhere to. While sustainability is desirable, compliance is mandatory.

An interesting example of a successful sustainability strategy is Unilever, the parent company of Dove soaps, Axe body spray, Ben & Jerry's Ice Cream, Hellmann's mayonnaise, and many other familiar brands. In 2010, the company implemented the Unilever Sustainable Living Plan, a ten-year blueprint for reducing the environmental impact of its brands while providing a more fair workplace.

By the end of Unilever Sustainable Living Plan, the company was able to announce major achievements in improving its environmental footprint as well as the company's bottom line. By working to conserve water and energy, the company was able to save more than 1 billion euros between 2008 and 2018. Moreover, by creating more opportunities for women, Unilever also become the preferred consumer goods employer for graduate students in 50 countries.

What Are the 3 Principles of Sustainability?

The principles of sustainability refer to the three core concepts of environmental, social, and economic sustainability–sometimes broken down as "people, planet, and profits." This means that in order to be considered sustainable, a business must be able to conserve natural resources, support a healthy community and workforce, and earn enough revenue to remain financially viable for the long-term.

What Activities Promote Sustainability?

Many sustainable businesses seek to reduce their environmental footprint by using renewable energy or by reducing waste. Companies may also be more sustainable by promoting diversity and fairness in their workforce, or enacting policies that benefit the local community.

What Is Economic Sustainability?

Economic sustainability refers to a company's ability to continue its operations over a long-term horizon. In order to be economically sustainable, a company must be able to ensure that it will have adequate resources, workers, and consumers for its products into the distant future.

What Are the Most Sustainable Companies?

There are many different ways to measure and compare sustainable companies. Canadian research firm Corporate Knights publishes a list of the 100 most sustainable companies. The list is topped by the Danish companies Vestas Wind Systems and Chr Hansen Holding, Autodesk Inc., in the United States, Schneider Electric in France, and City Developments in Singapore.

What Products Are Not Sustainable?

Non-sustainable products uses resources that cannot be replaced or replenished at the same speed that they are consumed. Products that rely on fossil fuels cannot be sustainable, because the resources used to make them can never be replaced. Other resources such as as rainforest timber, fishery stocks, sea corals, and other wildlife can be sustainable, if they are only harvested be limits that allow existing stocks to be replenished.

As consumers become more environmentally conscious, more companies and businesses are finding ways to reduce their impacts upon the planet and their community. Sustainability practices allow companies to highlight their social benefits while continuing to attract customers.

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What Is Sustainability? A Review of the Concept and Its Applications

  • First Online: 23 October 2013

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definition essay about sustainability

  • Elena Giovannoni 5 &
  • Giacomo Fabietti 5  

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Whereas the concept of sustainability is broadly acknowledged as being multidimensional, its various dimensions have brought to light different discourses over time and have often been treated separately. In some cases, this separation has limited the actual implementation of sustainability to its mere rhetoric. By relying upon a review of the relevant literature which addresses the notion of sustainability (or of sustainable development), the present chapter aims to explore this notion by identifying its key dimensions and the intertwining relationships between them. In so doing, the challenges and opportunities brought out by an integrated approach towards sustainability are also emphasised, together with the role played by governance structures, business models, management, measurement and reporting systems in implementing ‘integrated sustainability’ within organizations. In this context, the contribution of integrated reporting is explored.

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definition essay about sustainability

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“What I Say Is Not Necessarily What I Do”: A Critical Conceptual Analysis of the (Missing) Link between Corporate Sustainability Reporting and Social Impact

In line with Gray ( 2010 ), in this chapter we will use the expressions ‘sustainability’ and ‘sustainable development’ as two analogues. In so doing, we also acknowledge a slight difference between the two expressions, in which ‘sustainability’ refers to a state, while ‘sustainable development’ refers to the process for achieving this state (see Gray 2010 ).

Although this chapter is the result of the joint efforts and collaboration of the two authors, Elena Giovannoni is the author of Sects.  2.1 , 2.4 , 2.5 and 2.6 ; Giacomo Fabietti is the author of Sects.  2.2 and 2.3 . This chapter is based on the outcomes of a broader research project entitled “From governance and risk management rules to performance: roles, tools and enabling conditions in Italian firms”. The authors gratefully acknowledge the financial support of this research project provided by national funding within PRIN 2009.

Given the numerous theoretical streams which have approached the concept of sustainability from different perspectives, it would be impossible to provide a comprehensive review of the literature which has addressed this notion in only one chapter. More generally, as argued by Kidd ( 1992 , p. 3) “ the literature relating to sustainability is so voluminous that full analysis were not practical . And if it were practical it would probably not be worth the effort ”. Far from attempting to provide an exhaustive review, in this section we draw on some key studies which have addressed the concept of sustainability from different perspectives in order to outline some of the key discourses which have informed the debate regarding this concept.

This report is also known as the Brundtland Report.

In general, hybrids have been defined as new phenomena (practices, tools, organizations, etc.) produced out of two or more elements that are normally found separately (Miller et al. 2008 ).

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Giovannoni, E., Fabietti, G. (2013). What Is Sustainability? A Review of the Concept and Its Applications. In: Busco, C., Frigo, M., Riccaboni, A., Quattrone, P. (eds) Integrated Reporting. Springer, Cham. https://doi.org/10.1007/978-3-319-02168-3_2

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THE SDGS IN ACTION.

What are the sustainable development goals.

The Sustainable Development Goals (SDGs), also known as the Global Goals, were adopted by the United Nations in 2015 as a universal call to action to end poverty, protect the planet, and ensure that by 2030 all people enjoy peace and prosperity.

The 17 SDGs are integrated—they recognize that action in one area will affect outcomes in others, and that development must balance social, economic and environmental sustainability.

Countries have committed to prioritize progress for those who're furthest behind. The SDGs are designed to end poverty, hunger, AIDS, and discrimination against women and girls.

The creativity, knowhow, technology and financial resources from all of society is necessary to achieve the SDGs in every context.

definition essay about sustainability

Eradicating poverty in all its forms remains one of the greatest challenges facing humanity. While the number of people living in extreme poverty dropped by more than half between 1990 and 2015, too many are still struggling for the most basic human needs.

As of 2015, about 736 million people still lived on less than US$1.90 a day; many lack food, clean drinking water and sanitation. Rapid growth in countries such as China and India has lifted millions out of poverty, but progress has been uneven. Women are more likely to be poor than men because they have less paid work, education, and own less property.

Progress has also been limited in other regions, such as South Asia and sub-Saharan Africa, which account for 80 percent of those living in extreme poverty. New threats brought on by climate change, conflict and food insecurity, mean even more work is needed to bring people out of poverty.

The SDGs are a bold commitment to finish what we started, and end poverty in all forms and dimensions by 2030. This involves targeting the most vulnerable, increasing basic resources and services, and supporting communities affected by conflict and climate-related disasters.

definition essay about sustainability

736 million people still live in extreme poverty.

10 percent of the world’s population live in extreme poverty, down from 36 percent in 1990.

Some 1.3 billion people live in multidimensional poverty.

Half of all people living in poverty are under 18.

One person in every 10 is extremely poor.

Goal targets

  • By 2030, reduce at least by half the proportion of men, women and children of all ages living in poverty in all its dimensions according to national definitions
  • Implement nationally appropriate social protection systems and measures for all, including floors, and by 2030 achieve substantial coverage of the poor and the vulnerable
  • By 2030, ensure that all men and women, in particular the poor and the vulnerable, have equal rights to economic resources, as well as access to basic services, ownership and control over land and other forms of property, inheritance, natural resources, appropriate new technology and financial services, including microfinance
  • By 2030, build the resilience of the poor and those in vulnerable situations and reduce their exposure and vulnerability to climate-related extreme events and other economic, social and environmental shocks and disasters
  • Ensure significant mobilization of resources from a variety of sources, including through enhanced development cooperation, in order to provide adequate and predictable means for developing countries, in particular least developed countries, to implement programmes and policies to end poverty in all its dimensions
  • Create sound policy frameworks at the national, regional and international levels, based on pro-poor and gender-sensitive development strategies, to support accelerated investment in poverty eradication actions

SDGs in Action

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Cementing a better life

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Zero hunger.

definition essay about sustainability

Zero Hunger

The number of undernourished people has dropped by almost half in the past two decades because of rapid economic growth and increased agricultural productivity. Many developing countries that used to suffer from famine and hunger can now meet their nutritional needs. Central and East Asia, Latin America and the Caribbean have all made huge progress in eradicating extreme hunger.

Unfortunately, extreme hunger and malnutrition remain a huge barrier to development in many countries. There are 821 million people estimated to be chronically undernourished as of 2017, often as a direct consequence of environmental degradation, drought and biodiversity loss. Over 90 million children under five are dangerously underweight. Undernourishment and severe food insecurity appear to be increasing in almost all regions of Africa, as well as in South America.

The SDGs aim to end all forms of hunger and malnutrition by 2030, making sure all people–especially children–have sufficient and nutritious food all year. This involves promoting sustainable agricultural, supporting small-scale farmers and equal access to land, technology and markets. It also requires international cooperation to ensure investment in infrastructure and technology to improve agricultural productivity.

definition essay about sustainability

The number of undernourished people reached 821 million in 2017.

In 2017 Asia accounted for nearly two thirds, 63 percent, of the world’s hungry.

Nearly 151 million children under five, 22 percent, were still stunted in 2017.

More than 1 in 8 adults is obese.

1 in 3 women of reproductive age is anemic.

26 percent of workers are employed in agriculture.

  • By 2030, end all forms of malnutrition, including achieving, by 2025, the internationally agreed targets on stunting and wasting in children under 5 years of age, and address the nutritional needs of adolescent girls, pregnant and lactating women and older persons
  • By 2030, double the agricultural productivity and incomes of small-scale food producers, in particular women, indigenous peoples, family farmers, pastoralists and fishers, including through secure and equal access to land, other productive resources and inputs, knowledge, financial services, markets and opportunities for value addition and non-farm employment
  • By 2030, ensure sustainable food production systems and implement resilient agricultural practices that increase productivity and production, that help maintain ecosystems, that strengthen capacity for adaptation to climate change, extreme weather, drought, flooding and other disasters and that progressively improve land and soil quality
  • By 2020, maintain the genetic diversity of seeds, cultivated plants and farmed and domesticated animals and their related wild species, including through soundly managed and diversified seed and plant banks at the national, regional and international levels, and promote access to and fair and equitable sharing of benefits arising from the utilization of genetic resources and associated traditional knowledge, as internationally agreed
  • Increase investment, including through enhanced international cooperation, in rural infrastructure, agricultural research and extension services, technology development and plant and livestock gene banks in order to enhance agricultural productive capacity in developing countries, in particular least developed countries
  • Correct and prevent trade restrictions and distortions in world agricultural markets, including through the parallel elimination of all forms of agricultural export subsidies and all export measures with equivalent effect, in accordance with the mandate of the Doha Development Round
  • Adopt measures to ensure the proper functioning of food commodity markets and their derivatives and facilitate timely access to market information, including on food reserves, in order to help limit extreme food price volatility.

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Supporting Food Systems Transf...

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South Sudan, the world’s young...

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Water unites communities

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UNDP’s Engagement at Financing...

Good health and well-being.

definition essay about sustainability

We have made great progress against several leading causes of death and disease. Life expectancy has increased dramatically; infant and maternal mortality rates have declined, we’ve turned the tide on HIV and malaria deaths have halved.

Good health is essential to sustainable development and the 2030 Agenda reflects the complexity and interconnectedness of the two. It takes into account widening economic and social inequalities, rapid urbanization, threats to the climate and the environment, the continuing burden of HIV and other infectious diseases, and emerging challenges such as noncommunicable diseases. Universal health coverage will be integral to achieving SDG 3, ending poverty and reducing inequalities. Emerging global health priorities not explicitly included in the SDGs, including antimicrobial resistance, also demand action.

But the world is off-track to achieve the health-related SDGs. Progress has been uneven, both between and within countries. There’s a 31-year gap between the countries with the shortest and longest life expectancies. And while some countries have made impressive gains, national averages hide that many are being left behind. Multisectoral, rights-based and gender-sensitive approaches are essential to address inequalities and to build good health for all.

definition essay about sustainability

At least 400 million people have no basic healthcare, and 40 percent lack social protection.

More than 1.6 billion people live in fragile settings where protracted crises, combined with weak national capacity to deliver basic health services, present a significant challenge to global health.

By the end of 2017, 21.7 million people living with HIV were receiving antiretroviral therapy. Yet more than 15 million people are still waiting for treatment.

Every 2 seconds someone aged 30 to 70 years dies prematurely from noncommunicable diseases - cardiovascular disease, chronic respiratory disease, diabetes or cancer.

7 million people die every year from exposure to fine particles in polluted air.

More than one of every three women have experienced either physical or sexual violence at some point in their life resulting in both short- and long-term consequences for their physical, mental, and sexual and reproductive health.

  • By 2030, reduce the global maternal mortality ratio to less than 70 per 100,000 live births
  • By 2030, end preventable deaths of newborns and children under 5 years of age, with all countries aiming to reduce neonatal mortality to at least as low as 12 per 1,000 live births and under-5 mortality to at least as low as 25 per 1,000 live births
  • By 2030, end the epidemics of AIDS, tuberculosis, malaria and neglected tropical diseases and combat hepatitis, water-borne diseases and other communicable diseases
  • By 2030, reduce by one third premature mortality from non-communicable diseases through prevention and treatment and promote mental health and well-being
  • Strengthen the prevention and treatment of substance abuse, including narcotic drug abuse and harmful use of alcohol
  • By 2020, halve the number of global deaths and injuries from road traffic accidents
  • By 2030, ensure universal access to sexual and reproductive health-care services, including for family planning, information and education, and the integration of reproductive health into national strategies and programmes
  • Achieve universal health coverage, including financial risk protection, access to quality essential health-care services and access to safe, effective, quality and affordable essential medicines and vaccines for all
  • By 2030, substantially reduce the number of deaths and illnesses from hazardous chemicals and air, water and soil pollution and contamination
  • Strengthen the implementation of the World Health Organization Framework Convention on Tobacco Control in all countries, as appropriate
  • Support the research and development of vaccines and medicines for the communicable and noncommunicable diseases that primarily affect developing countries, provide access to affordable essential medicines and vaccines, in accordance with the Doha Declaration on the TRIPS Agreement and Public Health, which affirms the right of developing countries to use to the full the provisions in the Agreement on Trade Related Aspects of Intellectual Property Rights regarding flexibilities to protect public health, and, in particular, provide access to medicines for all
  • Substantially increase health financing and the recruitment, development, training and retention of the health workforce in developing countries, especially in least developed countries and small island developing States
  • Strengthen the capacity of all countries, in particular developing countries, for early warning, risk reduction and management of national and global health risks

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Quality education.

definition essay about sustainability

Since 2000, there has been enormous progress in achieving the target of universal primary education. The total enrollment rate in developing regions reached 91 percent in 2015, and the worldwide number of children out of school has dropped by almost half. There has also been a dramatic increase in literacy rates, and many more girls are in school than ever before. These are all remarkable successes.

Progress has also been tough in some developing regions due to high levels of poverty, armed conflicts and other emergencies. In Western Asia and North Africa, ongoing armed conflict has seen an increase in the number of children out of school. This is a worrying trend. While Sub-Saharan Africa made the greatest progress in primary school enrollment among all developing regions – from 52 percent in 1990, up to 78 percent in 2012 – large disparities still remain. Children from the poorest households are up to four times more likely to be out of school than those of the richest households. Disparities between rural and urban areas also remain high.

Achieving inclusive and quality education for all reaffirms the belief that education is one of the most powerful and proven vehicles for sustainable development. This goal ensures that all girls and boys complete free primary and secondary schooling by 2030. It also aims to provide equal access to affordable vocational training, to eliminate gender and wealth disparities, and achieve universal access to a quality higher education.

definition essay about sustainability

Enrollment in primary education in developing countries has reached 91 percent.

Still, 57 million primary-aged children remain out of school, more than half of them in sub-Saharan Africa.

In developing countries, one in four girls is not in school.

About half of all out-of-school children of primary school age live in conflict-affected areas.

103 million youth worldwide lack basic literacy skills, and more than 60 percent of them are women.

6 out of 10 children and adolescents are not achieving a minimum level of proficiency in reading and math.

  • By 2030, ensure that all girls and boys complete free, equitable and quality primary and secondary education leading to relevant and Goal-4 effective learning outcomes
  • By 2030, ensure that all girls and boys have access to quality early childhood development, care and preprimary education so that they are ready for primary education
  • By 2030, ensure equal access for all women and men to affordable and quality technical, vocational and tertiary education, including university
  • By 2030, substantially increase the number of youth and adults who have relevant skills, including technical and vocational skills, for employment, decent jobs and entrepreneurship
  • By 2030, eliminate gender disparities in education and ensure equal access to all levels of education and vocational training for the vulnerable, including persons with disabilities, indigenous peoples and children in vulnerable situations
  • By 2030, ensure that all youth and a substantial proportion of adults, both men and women, achieve literacy and numeracy
  • By 2030, ensure that all learners acquire the knowledge and skills needed to promote sustainable development, including, among others, through education for sustainable development and sustainable lifestyles, human rights, gender equality, promotion of a culture of peace and non-violence, global citizenship and appreciation of cultural diversity and of culture’s contribution to sustainable development
  • Build and upgrade education facilities that are child, disability and gender sensitive and provide safe, nonviolent, inclusive and effective learning environments for all
  • By 2020, substantially expand globally the number of scholarships available to developing countries, in particular least developed countries, small island developing States and African countries, for enrolment in higher education, including vocational training and information and communications technology, technical, engineering and scientific programmes, in developed countries and other developing countries
  • By 2030, substantially increase the supply of qualified teachers, including through international cooperation for teacher training in developing countries, especially least developed countries and small island developing states

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Gender equality.

definition essay about sustainability

Gender Equality

Ending all discrimination against women and girls is not only a basic human right, it’s crucial for sustainable future; it’s proven that empowering women and girls helps economic growth and development.

UNDP has made gender equality central to its work and we’ve seen remarkable progress in the past 20 years. There are more girls in school now compared to 15 years ago, and most regions have reached gender parity in primary education.

But although there are more women than ever in the labour market, there are still large inequalities in some regions, with women systematically denied the same work rights as men. Sexual violence and exploitation, the unequal division of unpaid care and domestic work, and discrimination in public office all remain huge barriers. Climate change and disasters continue to have a disproportionate effect on women and children, as do conflict and migration.

It is vital to give women equal rights land and property, sexual and reproductive health, and to technology and the internet. Today there are more women in public office than ever before, but encouraging more women leaders will help achieve greater gender equality.

definition essay about sustainability

Women earn only 77 cents for every dollar that men get for the same work.

35 percent of women have experienced physical and/or sexual violence.

Women represent just 13 percent of agricultural landholders.

Almost 750 million women and girls alive today were married before their 18th birthday.

Two thirds of developing countries have achieved gender parity in primary education.

Only 24 percent of national parliamentarians were women as of November 2018, a small increase from 11.3 percent in 1995.

  • End all forms of discrimination against all women and girls everywhere
  • Eliminate all forms of violence against all women and girls in the public and private spheres, including trafficking and sexual and other types of exploitation
  • Eliminate all harmful practices, such as child, early and forced marriage and female genital mutilation
  • Recognize and value unpaid care and domestic work through the provision of public services, infrastructure and social protection policies and the promotion of shared responsibility within the household and the family as nationally appropriate
  • Ensure women’s full and effective participation and equal opportunities for leadership at all levels of decisionmaking in political, economic and public life
  • Ensure universal access to sexual and reproductive health and reproductive rights as agreed in accordance with the Programme of Action of the International Conference on Population and Development and the Beijing Platform for Action and the outcome documents of their review conferences
  • Undertake reforms to give women equal rights to economic resources, as well as access to ownership and control over land and other forms of property, financial services, inheritance and natural resources, in accordance with national laws
  • Enhance the use of enabling technology, in particular information and communications technology, to promote the empowerment of women
  • Adopt and strengthen sound policies and enforceable legislation for the promotion of gender equality and the empowerment of all women and girls at all levels

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Press releases.

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UNDP applauds Namibian High Co...

Clean water and sanitation.

definition essay about sustainability

Water scarcity affects more than 40 percent of people, an alarming figure that is projected to rise as temperatures do. Although 2.1 billion people have improved water sanitation since 1990, dwindling drinking water supplies are affecting every continent.

More and more countries are experiencing water stress, and increasing drought and desertification is already worsening these trends. By 2050, it is projected that at least one in four people will suffer recurring water shortages.

Safe and affordable drinking water for all by 2030 requires we invest in adequate infrastructure, provide sanitation facilities, and encourage hygiene. Protecting and restoring water-related ecosystems is essential.

Ensuring universal safe and affordable drinking water involves reaching over 800 million people who lack basic services and improving accessibility and safety of services for over two billion.

In 2015, 4.5 billion people lacked safely managed sanitation services (with adequately disposed or treated excreta) and 2.3 billion lacked even basic sanitation.

definition essay about sustainability

71 percent of the global population, 5.2 billion people, had safely-managed drinking water in 2015, but 844 million people still lacked even basic drinking water.

39 percent of the global population, 2.9 billion people, had safe sanitation in 2015, but 2.3 billion people still lacked basic sanitation. 892 million people practiced open defecation.

80 percent of wastewater goes into waterways without adequate treatment.

Water stress affects more than 2 billion people, with this figure projected to increase.

80 percent of countries have laid the foundations for integrated water resources management.

The world has lost 70 percent of its natural wetlands over the last century.

  • By 2030, achieve universal and equitable access to safe and affordable drinking water for all
  • By 2030, achieve access to adequate and equitable sanitation and hygiene for all and end open defecation, paying special attention to the needs of women and girls and those in vulnerable situations
  • By 2030, improve water quality by reducing pollution, eliminating dumping and minimizing release of hazardous chemicals and materials, halving the proportion of untreated wastewater and substantially increasing recycling and safe reuse globally
  • By 2030, substantially increase water-use efficiency across all sectors and ensure sustainable withdrawals and supply of freshwater to address water scarcity and substantially reduce the number of people suffering from water scarcity
  • By 2030, implement integrated water resources management at all levels, including through transboundary cooperation as appropriate
  • By 2020, protect and restore water-related ecosystems, including mountains, forests, wetlands, rivers, aquifers and lakes
  • By 2030, expand international cooperation and capacity-building support to developing countries in water- and sanitation-related activities and programmes, including water harvesting, desalination, water efficiency, wastewater treatment, recycling and reuse technologies
  • Support and strengthen the participation of local communities in improving water and sanitation management

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Restoring sacred land

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(R)evolution

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Mapping Essential Life Support...

Affordable and clean energy.

definition essay about sustainability

Between 2000 and 2018, the number of people with electricity increased from 78 to 90 percent, and the numbers without electricity dipped to 789 million.

Yet as the population continues to grow, so will the demand for cheap energy, and an economy reliant on fossil fuels is creating drastic changes to our climate.

Investing in solar, wind and thermal power, improving energy productivity, and ensuring energy for all is vital if we are to achieve SDG 7 by 2030.

Expanding infrastructure and upgrading technology to provide clean and more efficient energy in all countries will encourage growth and help the environment.  

definition essay about sustainability

One out of 10 people still lacks electricity, and most live in rural areas of the developing world. More than half are in sub-Saharan Africa.

Energy is by far the main contributor to climate change. It accounts for 73 percent of human-caused greenhouse gases.

Energy efficiency is key; the right efficiency policies could enable the world to achieve more than 40 percent of the emissions cuts needed to reach its climate goals without new technology.

Almost a third of the world’s population—2.8 billion—rely on polluting and unhealthy fuels for cooking.

As of 2017, 17.5 percent of power was generated through renewable sources.

The renewable energy sector employed a record 11.5 million people in 2019. The changes needed in energy production and uses to achieve the Paris Agreement target of limiting the rise in temperature to below 2C can create 18 million jobs.

  • By 2030, ensure universal access to affordable, reliable and modern energy services
  • By 2030, increase substantially the share of renewable energy in the global energy mix
  • By 2030, double the global rate of improvement in energy efficiency
  • By 2030, enhance international cooperation to facilitate access to clean energy research and technology, including renewable energy, energy efficiency and advanced and cleaner fossil-fuel technology, and promote investment in energy infrastructure and clean energy technology
  • By 2030, expand infrastructure and upgrade technology for supplying modern and sustainable energy services for all in developing countries, in particular least developed countries, small island developing States, and land-locked developing coun

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How a “portfolio approach” spa...

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The big switch

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Decent work and economic growth.

definition essay about sustainability

Over the past 25 years the number of workers living in extreme poverty has declined dramatically, despite the lasting impact of the 2008 economic crisis and global recession. In developing countries, the middle class now makes up more than 34 percent of total employment – a number that has almost tripled between 1991 and 2015.

However, as the global economy continues to recover we are seeing slower growth, widening inequalities, and not enough jobs to keep up with a growing labour force. According to the International Labour Organization, more than 204 million people were unemployed in 2015.

The SDGs promote sustained economic growth, higher levels of productivity and technological innovation. Encouraging entrepreneurship and job creation are key to this, as are effective measures to eradicate forced labour, slavery and human trafficking. With these targets in mind, the goal is to achieve full and productive employment, and decent work, for all women and men by 2030.

definition essay about sustainability

An estimated 172 million people worldwide were without work in 2018 - an unemployment rate of 5 percent.

As a result of an expanding labour force, the number of unemployed is projected to increase by 1 million every year and reach 174 million by 2020.

Some 700 million workers lived in extreme or moderate poverty in 2018, with less than US$3.20 per day.

Women’s participation in the labour force stood at 48 per cent in 2018, compared with 75 percent for men. Around 3 in 5 of the 3.5 billion people in the labour force in 2018 were men.

Overall, 2 billion workers were in informal employment in 2016, accounting for 61 per cent of the world’s workforce.

Many more women than men are underutilized in the labour force—85 million compared to 55 million.

  • Sustain per capita economic growth in accordance with national circumstances and, in particular, at least 7 per cent gross domestic product growth per annum in the least developed countries
  • Achieve higher levels of economic productivity through diversification, technological upgrading and innovation, including through a focus on high-value added and labour-intensive sectors
  • Promote development-oriented policies that support productive activities, decent job creation, entrepreneurship, creativity and innovation, and encourage the formalization and growth of micro-, small- and medium-sized enterprises, including through access to financial services
  • Improve progressively, through 2030, global resource efficiency in consumption and production and endeavour to decouple economic growth from environmental degradation, in accordance with the 10-year framework of programmes on sustainable consumption and production, with developed countries taking the lead
  • By 2030, achieve full and productive employment and decent work for all women and men, including for young people and persons with disabilities, and equal pay for work of equal value
  • By 2020, substantially reduce the proportion of youth not in employment, education or training
  • Take immediate and effective measures to eradicate forced labour, end modern slavery and human trafficking and secure the prohibition and elimination of the worst forms of child labour, including recruitment and use of child soldiers, and by 2025 end child labour in all its forms
  • Protect labour rights and promote safe and secure working environments for all workers, including migrant workers, in particular women migrants, and those in precarious employment
  • By 2030, devise and implement policies to promote sustainable tourism that creates jobs and promotes local culture and products
  • Strengthen the capacity of domestic financial institutions to encourage and expand access to banking, insurance and financial services for all
  • Increase Aid for Trade support for developing countries, in particular least developed countries, including through the Enhanced Integrated Framework for Trade-Related Technical Assistance to Least Developed Countries
  • By 2020, develop and operationalize a global strategy for youth employment and implement the Global Jobs Pact of the International Labour Organization

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Voices of hope

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Indigenous Peoples - an antido...

Industry, innovation and infrastructure.

definition essay about sustainability

Investment in infrastructure and innovation are crucial drivers of economic growth and development. With over half the world population now living in cities, mass transport and renewable energy are becoming ever more important, as are the growth of new industries and information and communication technologies.

Technological progress is also key to finding lasting solutions to both economic and environmental challenges, such as providing new jobs and promoting energy efficiency. Promoting sustainable industries, and investing in scientific research and innovation, are all important ways to facilitate sustainable development.

More than 4 billion people still do not have access to the Internet, and 90 percent are from the developing world. Bridging this digital divide is crucial to ensure equal access to information and knowledge, as well as foster innovation and entrepreneurship.   

definition essay about sustainability

Worldwide, 2.3 billion people lack access to basic sanitation.

In some low-income African countries, infrastructure constraints cut businesses’ productivity by around 40 percent.

2.6 billion people in developing countries do not have access to constant electricity.

More than 4 billion people still do not have access to the Internet; 90 percent of them are in the developing world.

The renewable energy sectors currently employ more than 2.3 million people; the number could reach 20 million by 2030.

In developing countries, barely 30 percent of agricultural products undergo industrial processing, compared to 98 percent high-income countries.

  • Develop quality, reliable, sustainable and resilient infrastructure, including regional and transborder infrastructure, to support economic development and human well-being, with a focus on affordable and equitable access for all
  • Promote inclusive and sustainable industrialization and, by 2030, significantly raise industry’s share of employment and gross domestic product, in line with national circumstances, and double its share in least developed countries
  • Increase the access of small-scale industrial and other enterprises, in particular in developing countries, to financial services, including affordable credit, and their integration into value chains and markets
  • By 2030, upgrade infrastructure and retrofit industries to make them sustainable, with increased resource-use efficiency and greater adoption of clean and environmentally sound technologies and industrial processes, with all countries taking action in accordance with their respective capabilities
  • Enhance scientific research, upgrade the technological capabilities of industrial sectors in all countries, in particular developing countries, including, by 2030, encouraging innovation and substantially increasing the number of research and development workers per 1 million people and public and private research and development spending
  • Facilitate sustainable and resilient infrastructure development in developing countries through enhanced financial, technological and technical support to African countries, least developed countries, landlocked developing countries and small island developing States 18
  • Support domestic technology development, research and innovation in developing countries, including by ensuring a conducive policy environment for, inter alia, industrial diversification and value addition to commodities
  • Significantly increase access to information and communications technology and strive to provide universal and affordable access to the Internet in least developed countries by 2020

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Digital generation

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AI Hub for Sustainable Develop...

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Reduced inequalities.

definition essay about sustainability

Income inequality is on the rise—the richest 10 percent have up to 40 percent of global income whereas the poorest 10 percent earn only between 2 to 7 percent. If we take into account population growth inequality in developing countries, inequality has increased by 11 percent.

Income inequality has increased in nearly everywhere in recent decades, but at different speeds. It’s lowest in Europe and highest in the Middle East.

These widening disparities require sound policies to empower lower income earners, and promote economic inclusion of all regardless of sex, race or ethnicity.

Income inequality requires global solutions. This involves improving the regulation and monitoring of financial markets and institutions, encouraging development assistance and foreign direct investment to regions where the need is greatest. Facilitating the safe migration and mobility of people is also key to bridging the widening divide.

definition essay about sustainability

In 2016, 22 percent of global income was received by the top 1 percent compared with 10 percent of income for the bottom 50 percent.

In 1980, the top one percent had 16 percent of global income. The bottom 50 percent had 8 percent of income.

Economic inequality is largely driven by the unequal ownership of capital. Since 1980, very large transfers of public to private wealth occurred in nearly all countries. The global wealth share of the top 1 percent was 33 percent in 2016.

Under "business as usual", the top 1 percent global wealth will reach 39 percent by 2050.

Women spend, on average, twice as much time on unpaid housework as men.

Women have as much access to financial services as men in just 60 percent of the countries assessed and to land ownership in just 42 percent of the countries assessed.

  • By 2030, progressively achieve and sustain income growth of the bottom 40 per cent of the population at a rate higher than the national average
  • By 2030, empower and promote the social, economic and political inclusion of all, irrespective of age, sex, disability, race, ethnicity, origin, religion or economic or other status
  • Ensure equal opportunity and reduce inequalities of outcome, including by eliminating discriminatory laws, policies and practices and promoting appropriate legislation, policies and action in this regard
  • Adopt policies, especially fiscal, wage and social protection policies, and progressively achieve greater equality
  • Improve the regulation and monitoring of global financial markets and institutions and strengthen the implementation of such regulations
  • Ensure enhanced representation and voice for developing countries in decision-making in global international economic and financial institutions in order to deliver more effective, credible, accountable and legitimate institutions
  • Facilitate orderly, safe, regular and responsible migration and mobility of people, including through the implementation of planned and well-managed migration policies
  • Implement the principle of special and differential treatment for developing countries, in particular least developed countries, in accordance with World Trade Organization agreements
  • Encourage official development assistance and financial flows, including foreign direct investment, to States where the need is greatest, in particular least developed countries, African countries, small island developing States and landlocked developing countries, in accordance with their national plans and programmes
  • By 2030, reduce to less than 3 per cent the transaction costs of migrant remittances and eliminate remittance corridors with costs higher than 5 per cent

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It’s “our collective responsib...

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A moment of celebration

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Mauritania pilots digital ID a...

Sustainable cities and communities.

definition essay about sustainability

More than half of us  live in cities. By 2050, two-thirds of all humanity—6.5 billion people—will be urban. Sustainable development cannot be achieved without significantly transforming the way we build and manage our urban spaces.

The rapid growth of cities—a result of rising populations and increasing migration—has led to a boom in mega-cities, especially in the developing world, and slums are becoming a more significant feature of urban life.

Making cities sustainable means creating career and business opportunities, safe and affordable housing, and building resilient societies and economies. It involves investment in public transport, creating green public spaces, and improving urban planning and management in participatory and inclusive ways.

definition essay about sustainability

In 2018, 4.2 billion people, 55 percent of the world’s population, lived in cities. By 2050, the urban population is expected to reach 6.5 billion.

Cities occupy just 3 percent of the Earth’s land but account for 60 to 80 percent of energy consumption and at least 70 percent of carbon emissions.

828 million people are estimated to live in slums, and the number is rising.

In 1990, there were 10 cities with 10 million people or more; by 2014, the number of mega-cities rose to 28, and was expected to reach 33 by 2018. In the future, 9 out of 10 mega-cities will be in the developing world.

In the coming decades, 90 percent of urban expansion will be in the developing world.

The economic role of cities is significant. They generate about 80 percent of the global GDP.

  • By 2030, ensure access for all to adequate, safe and affordable housing and basic services and upgrade slums
  • By 2030, provide access to safe, affordable, accessible and sustainable transport systems for all, improving road safety, notably by expanding public transport, with special attention to the needs of those in vulnerable situations, women, children, persons with disabilities and older persons
  • By 2030, enhance inclusive and sustainable urbanization and capacity for participatory, integrated and sustainable human settlement planning and management in all countries
  • Strengthen efforts to protect and safeguard the world’s cultural and natural heritage
  • By 2030, significantly reduce the number of deaths and the number of people affected and substantially decrease the direct economic losses relative to global gross domestic product caused by disasters, including water-related disasters, with a focus on protecting the poor and people in vulnerable situations
  • By 2030, reduce the adverse per capita environmental impact of cities, including by paying special attention to air quality and municipal and other waste management
  • By 2030, provide universal access to safe, inclusive and accessible, green and public spaces, in particular for women and children, older persons and persons with disabilities
  • Support positive economic, social and environmental links between urban, peri-urban and rural areas by strengthening national and regional development planning
  • By 2020, substantially increase the number of cities and human settlements adopting and implementing integrated policies and plans towards inclusion, resource efficiency, mitigation and adaptation to climate change, resilience to disasters, and develop and implement, in line with the Sendai Framework for Disaster Risk Reduction 2015-2030, holistic disaster risk management at all levels
  • Support least developed countries, including through financial and technical assistance, in building sustainable and resilient buildings utilizing local materials

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Responsible consumption and production.

definition essay about sustainability

Achieving economic growth and sustainable development requires that we urgently reduce our ecological footprint by changing the way we produce and consume goods and resources. Agriculture is the biggest user of water worldwide, and irrigation now claims close to 70 percent of all freshwater for human use.

The efficient management of our shared natural resources, and the way we dispose of toxic waste and pollutants, are important targets to achieve this goal. Encouraging industries, businesses and consumers to recycle and reduce waste is equally important, as is supporting developing countries to move towards more sustainable patterns of consumption by 2030.

A large share of the world population is still consuming far too little to meet even their basic needs.  Halving the per capita of global food waste at the retailer and consumer levels is also important for creating more efficient production and supply chains. This can help with food security, and shift us towards a more resource efficient economy.

definition essay about sustainability

1.3 billion tonnes of food is wasted every year, while almost 2 billion people go hungry or undernourished.

The food sector accounts for around 22 percent of total greenhouse gas emissions, largely from the conversion of forests into farmland.

Globally, 2 billion people are overweight or obese.

Only 3 percent of the world’s water is fresh (drinkable), and humans are using it faster than nature can replenish it.

If people everywhere switched to energy efficient lightbulbs, the world would save US$120 billion annually.

One-fifth of the world’s final energy consumption in 2013 was from renewable sources.

  • Implement the 10-year framework of programmes on sustainable consumption and production, all countries taking action, with developed countries taking the lead, taking into account the development and capabilities of developing countries
  • By 2030, achieve the sustainable management and efficient use of natural resources
  • By 2030, halve per capita global food waste at the retail and consumer levels and reduce food losses along production and supply chains, including post-harvest losses
  • By 2020, achieve the environmentally sound management of chemicals and all wastes throughout their life cycle, in accordance with agreed international frameworks, and significantly reduce their release to air, water and soil in order to minimize their adverse impacts on human health and the environment
  • By 2030, substantially reduce waste generation through prevention, reduction, recycling and reuse
  • Encourage companies, especially large and transnational companies, to adopt sustainable practices and to integrate sustainability information into their reporting cycle
  • Promote public procurement practices that are sustainable, in accordance with national policies and priorities
  • By 2030, ensure that people everywhere have the relevant information and awareness for sustainable development and lifestyles in harmony with nature
  • Support developing countries to strengthen their scientific and technological capacity to move towards more sustainable patterns of consumption and production
  • Develop and implement tools to monitor sustainable development impacts for sustainable tourism that creates jobs and promotes local culture and products
  • Rationalize inefficient fossil-fuel subsidies that encourage wasteful consumption by removing market distortions, in accordance with national circumstances, including by restructuring taxation and phasing out those harmful subsidies, where they exist, to reflect their environmental impacts, taking fully into account the specific needs and conditions of developing countries and minimizing the possible adverse impacts on their development in a manner that protects the poor and the affected communities

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Popping the bottle

Popping the bottle, climate action.

definition essay about sustainability

There is no country that is not experiencing the drastic effects of climate change. Greenhouse gas emissions are more than 50 percent higher than in 1990. Global warming is causing long-lasting changes to our climate system, which threatens irreversible consequences if we do not act.

The annual average economic losses from climate-related disasters are in the hundreds of billions of dollars. This is not to mention the human impact of geo-physical disasters, which are 91 percent climate-related, and which between 1998 and 2017 killed 1.3 million people, and left 4.4 billion injured. The goal aims to mobilize US$100 billion annually by 2020 to address the needs of developing countries to both adapt to climate change and invest in low-carbon development.

Supporting vulnerable regions will directly contribute not only to Goal 13 but also to the other SDGs. These actions must also go hand in hand with efforts to integrate disaster risk measures, sustainable natural resource management, and human security into national development strategies. It is still possible, with strong political will, increased investment, and using existing technology, to limit the increase in global mean temperature to two degrees Celsius above pre-industrial levels, aiming at 1.5 ° C, but this requires urgent and ambitious collective action.

definition essay about sustainability

As of 2017 humans are estimated to have caused approximately 1.0°C of global warming above pre-industrial levels.

Sea levels have risen by about 20 cm (8 inches) since 1880 and are projected to rise another 30–122 cm (1 to 4 feet) by 2100.

To limit warming to 1.5C, global net CO2 emissions must drop by 45% between 2010 and 2030, and reach net zero around 2050.

Climate pledges under The Paris Agreement cover only one third of the emissions reductions needed to keep the world below 2°C.

Bold climate action could trigger at least US$26 trillion in economic benefits by 2030.

The energy sector alone will create around 18 million more jobs by 2030, focused specifically on sustainable energy.

  • Strengthen resilience and adaptive capacity to climate-related hazards and natural disasters in all countries
  • Integrate climate change measures into national policies, strategies and planning
  • Improve education, awareness-raising and human and institutional capacity on climate change mitigation, adaptation, impact reduction and early warning
  • Implement the commitment undertaken by developed-country parties to the United Nations Framework Convention on Climate Change to a goal of mobilizing jointly $100 billion annually by 2020 from all sources to address the needs of developing countries in the context of meaningful mitigation actions and transparency on implementation and fully operationalize the Green Climate Fund through its capitalization as soon as possible
  • Promote mechanisms for raising capacity for effective climate change-related planning and management in least developed countries and small island developing States, including focusing on women, youth and local and marginalized communities

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Life below water.

definition essay about sustainability

The world’s oceans – their temperature, chemistry, currents and life – drive global systems that make the Earth habitable for humankind. How we manage this vital resource is essential for humanity as a whole, and to counterbalance the effects of climate change.

Over three billion people depend on marine and coastal biodiversity for their livelihoods. However, today we are seeing 30 percent of the world’s fish stocks overexploited, reaching below the level at which they can produce sustainable yields.

Oceans also absorb about 30 percent of the carbon dioxide produced by humans, and we are seeing a 26 percent rise in ocean acidification since the beginning of the industrial revolution. Marine pollution, an overwhelming majority of which comes from land-based sources, is reaching alarming levels, with an average of 13,000 pieces of plastic litter to be found on every square kilometre of ocean.

The SDGs aim to sustainably manage and protect marine and coastal ecosystems from pollution, as well as address the impacts of ocean acidification. Enhancing conservation and the sustainable use of ocean-based resources through international law will also help mitigate some of the challenges facing our oceans.

definition essay about sustainability

The ocean covers three quarters of the Earth’s surface and represents 99 percent of the living space on the planet by volume.

The ocean contains nearly 200,000 identified species, but actual numbers may lie in the millions.

As much as 40 percent of the ocean is heavily affected by pollution, depleted fisheries, loss of coastal habitats and other human activities.

The ocean absorbs about 30 percent of carbon dioxide produced by humans, buffering the impacts of global warming.

More than 3 billion people depend on marine and coastal biodiversity for their livelihoods.

The market value of marine and coastal resources and industries is estimated at US$3 trillion per year, about 5 percent of global GDP.

  • By 2025, prevent and significantly reduce marine pollution of all kinds, in particular from land-based activities, including marine debris and nutrient pollution
  • By 2020, sustainably manage and protect marine and coastal ecosystems to avoid significant adverse impacts, including by strengthening their resilience, and take action for their restoration in order to achieve healthy and productive oceans
  • Minimize and address the impacts of ocean acidification, including through enhanced scientific cooperation at all levels
  • By 2020, effectively regulate harvesting and end overfishing, illegal, unreported and unregulated fishing and destructive fishing practices and implement science-based management plans, in order to restore fish stocks in the shortest time feasible, at least to levels that can produce maximum sustainable yield as determined by their biological characteristics
  • By 2020, conserve at least 10 per cent of coastal and marine areas, consistent with national and international law and based on the best available scientific information
  • By 2020, prohibit certain forms of fisheries subsidies which contribute to overcapacity and overfishing, eliminate subsidies that contribute to illegal, unreported and unregulated fishing and refrain from introducing new such subsidies, recognizing that appropriate and effective special and differential treatment for developing and least developed countries should be an integral part of the World Trade Organization fisheries subsidies negotiation
  • By 2030, increase the economic benefits to Small Island developing States and least developed countries from the sustainable use of marine resources, including through sustainable management of fisheries, aquaculture and tourism
  • Increase scientific knowledge, develop research capacity and transfer marine technology, taking into account the Intergovernmental Oceanographic Commission Criteria and Guidelines on the Transfer of Marine Technology, in order to improve ocean health and to enhance the contribution of marine biodiversity to the development of developing countries, in particular small island developing States and least developed countries
  • Provide access for small-scale artisanal fishers to marine resources and markets
  • Enhance the conservation and sustainable use of oceans and their resources by implementing international law as reflected in UNCLOS, which provides the legal framework for the conservation and sustainable use of oceans and their resources, as recalled in paragraph 158 of The Future We Want

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Life on land.

definition essay about sustainability

Human life depends on the earth as much as the ocean for our sustenance and livelihoods. Plant life provides 80 percent of the human diet, and we rely on agriculture as an important economic resources. Forests cover 30 percent of the Earth’s surface, provide vital habitats for millions of species, and important sources for clean air and water, as well as being crucial for combating climate change.

Every year, 13 million hectares of forests are lost, while the persistent degradation of drylands has led to the desertification of 3.6 billion hectares, disproportionately affecting poor communities.

While 15 percent of land is protected, biodiversity is still at risk. Nearly 7,000 species of animals and plants have been illegally traded. Wildlife trafficking not only erodes biodiversity, but creates insecurity, fuels conflict, and feeds corruption.

Urgent action must be taken to reduce the loss of natural habitats and biodiversity which are part of our common heritage and support global food and water security, climate change mitigation and adaptation, and peace and security.

definition essay about sustainability

Around 1.6 billion people depend on forests for their livelihoods.

Forests are home to more than 80 percent of all terrestrial species of animals, plants and insects.

2.6 billion people depend directly on agriculture for a living.

Nature-based climate solutions can contribute about a third of CO2 reductions by 2030.

The value of ecosystems to human livelihoods and well-being is $US125 trillion per year.v

Mountain regions provide 60-80 percent of the Earth's fresh water.

  • By 2020, ensure the conservation, restoration and sustainable use of terrestrial and inland freshwater ecosystems and their services, in particular forests, wetlands, mountains and drylands, in line with obligations under international agreements
  • By 2020, promote the implementation of sustainable management of all types of forests, halt deforestation, restore degraded forests and substantially increase afforestation and reforestation globally
  • By 2030, combat desertification, restore degraded land and soil, including land affected by desertification, drought and floods, and strive to achieve a land degradation-neutral world
  • By 2030, ensure the conservation of mountain ecosystems, including their biodiversity, in order to enhance their capacity to provide benefits that are essential for sustainable development
  • Take urgent and significant action to reduce the degradation of natural habitats, halt the loss of biodiversity and, by 2020, protect and prevent the extinction of threatened species
  • Promote fair and equitable sharing of the benefits arising from the utilization of genetic resources and promote appropriate access to such resources, as internationally agreed
  • Take urgent action to end poaching and trafficking of protected species of flora and fauna and address both demand and supply of illegal wildlife products
  • By 2020, introduce measures to prevent the introduction and significantly reduce the impact of invasive alien species on land and water ecosystems and control or eradicate the priority species
  • By 2020, integrate ecosystem and biodiversity values into national and local planning, development processes, poverty reduction strategies and accounts
  • Mobilize and significantly increase financial resources from all sources to conserve and sustainably use biodiversity and ecosystems
  • Mobilize significant resources from all sources and at all levels to finance sustainable forest management and provide adequate incentives to developing countries to advance such management, including for conservation and reforestation
  • Enhance global support for efforts to combat poaching and trafficking of protected species, including by increasing the capacity of local communities to pursue sustainable livelihood opportunities

Peace, justice and strong institutions

definition essay about sustainability

We cannot hope for sustainable development without peace, stability, human rights and effective governance, based on the rule of law. Yet our world is increasingly divided. Some regions enjoy peace, security and prosperity, while others fall into seemingly endless cycles of conflict and violence. This is not inevitable and must be addressed.

Armed violence and insecurity have a destructive impact on a country’s development, affecting economic growth, and often resulting in grievances that last for generations. Sexual violence, crime, exploitation and torture are also prevalent where there is conflict, or no rule of law, and countries must take measures to protect those who are most at risk

The SDGs aim to significantly reduce all forms of violence, and work with governments and communities to end conflict and insecurity. Promoting the rule of law and human rights are key to this process, as is reducing the flow of illicit arms and strengthening the participation of developing countries in the institutions of global governance.

definition essay about sustainability

By the end of 2017, 68.5 million people had been forcibly displaced as a result of persecution, conflict, violence or human rights violations.

There are at least 10 million stateless people who have been denied nationality and its related rights.

Corruption, bribery, theft and tax evasion cost developing countries US$1.26 trillion per year.

49 countries lack laws protecting women from domestic violence.

In 46 countries, women now hold more than 30 percent of seats in at least one chamber of national parliament.

1 billion people are legally ‘invisible’ because they cannot prove who they are. This includes an estimated 625 million children under 14 whose births were never registered.

  • Significantly reduce all forms of violence and related death rates everywhere
  • End abuse, exploitation, trafficking and all forms of violence against and torture of children
  • Promote the rule of law at the national and international levels and ensure equal access to justice for all
  • By 2030, significantly reduce illicit financial and arms flows, strengthen the recovery and return of stolen assets and combat all forms of organized crime
  • Substantially reduce corruption and bribery in all their forms
  • Develop effective, accountable and transparent institutions at all levels
  • Ensure responsive, inclusive, participatory and representative decision-making at all levels
  • Broaden and strengthen the participation of developing countries in the institutions of global governance
  • By 2030, provide legal identity for all, including birth registration
  • Ensure public access to information and protect fundamental freedoms, in accordance with national legislation and international agreements
  • Strengthen relevant national institutions, including through international cooperation, for building capacity at all levels, in particular in developing countries, to prevent violence and combat terrorism and crime
  • Promote and enforce non-discriminatory laws and policies for sustainable development

Partnerships for the goals

definition essay about sustainability

The SDGs can only be realized with strong global partnerships and cooperation. Official Development Assistance remained steady but below target, at US$147 billion in 2017. While humanitarian crises brought on by conflict or natural disasters continue to demand more financial resources and aid. Many countries also require Official Development Assistance to encourage growth and trade.

The world is more interconnected than ever. Improving access to technology and knowledge is an important way to share ideas and foster innovation. Coordinating policies to help developing countries manage their debt, as well as promoting investment for the least developed, is vital for sustainable growth and development.

The goals aim to enhance North-South and South-South cooperation by supporting national plans to achieve all the targets. Promoting international trade, and helping developing countries increase their exports is all part of achieving a universal rules-based and equitable trading system that is fair and open and benefits all.

definition essay about sustainability

The UN Conference on Trade and Development (UNCTAD) says achieving SDGs will require US$5 trillion to $7 trillion in annual investment.

Total official development assistance reached US$147.2 billion in 2017.

In 2017, international remittances totaled US$613 billion; 76 percent of it went to developing countries.

In 2016, 6 countries met the international target to keep official development assistance at or above 0.7 percent of gross national income.

Sustainable and responsible investments represent high-potential sources of capital for SDGs. As of 2016, US$18.2 trillion was invested in this asset class.

The bond market for sustainable business is growing. In 2018 global green bonds reached US$155.5billion, up 78 percent from previous year.

  • Strengthen domestic resource mobilization, including through international support to developing countries, to improve domestic capacity for tax and other revenue collection
  • Developed countries to implement fully their official development assistance commitments, including the commitment by many developed countries to achieve the target of 0.7 per cent of ODA/GNI to developing countries and 0.15 to 0.20 per cent of ODA/GNI to least developed countries ODA providers are encouraged to consider setting a target to provide at least 0.20 per cent of ODA/GNI to least developed countries
  • Mobilize additional financial resources for developing countries from multiple sources
  • Assist developing countries in attaining long-term debt sustainability through coordinated policies aimed at fostering debt financing, debt relief and debt restructuring, as appropriate, and address the external debt of highly indebted poor countries to reduce debt distress
  • Adopt and implement investment promotion regimes for least developed countries  
  • Enhance North-South, South-South and triangular regional and international cooperation on and access to science, technology and innovation and enhance knowledge sharing on mutually agreed terms, including through improved coordination among existing mechanisms, in particular at the United Nations level, and through a global technology facilitation mechanism
  • Promote the development, transfer, dissemination and diffusion of environmentally sound technologies to developing countries on favourable terms, including on concessional and preferential terms, as mutually agreed
  • Fully operationalize the technology bank and science, technology and innovation capacity-building mechanism for least developed countries by 2017 and enhance the use of enabling technology, in particular information and communications technology  

Capacity building

  • Enhance international support for implementing effective and targeted capacity-building in developing countries to support national plans to implement all the sustainable development goals, including through North-South, South-South and triangular cooperation  
  • Promote a universal, rules-based, open, non-discriminatory and equitable multilateral trading system under the World Trade Organization, including through the conclusion of negotiations under its Doha Development Agenda
  • Significantly increase the exports of developing countries, in particular with a view to doubling the least developed countries’ share of global exports by 2020
  • Realize timely implementation of duty-free and quota-free market access on a lasting basis for all least developed countries, consistent with World Trade Organization decisions, including by ensuring that preferential rules of origin applicable to imports from least developed countries are transparent and simple, and contribute to facilitating market access  

Systemic issues

Policy and institutional coherence

  • Enhance global macroeconomic stability, including through policy coordination and policy coherence
  • Enhance policy coherence for sustainable development
  • Respect each country’s policy space and leadership to establish and implement policies for poverty eradication and sustainable development  

Multi-stakeholder partnerships

  • Enhance the global partnership for sustainable development, complemented by multi-stakeholder partnerships that mobilize and share knowledge, expertise, technology and financial resources, to support the achievement of the sustainable development goals in all countries, in particular developing countries
  • Encourage and promote effective public, public-private and civil society partnerships, building on the experience and resourcing strategies of partnerships  

Data, monitoring and accountability

  • By 2020, enhance capacity-building support to developing countries, including for least developed countries and small island developing States, to increase significantly the availability of high-quality, timely and reliable data disaggregated by income, gender, age, race, ethnicity, migratory status, disability, geographic location and other characteristics relevant in national contexts
  • By 2030, build on existing initiatives to develop measurements of progress on sustainable development that complement gross domestic product, and support statistical capacity-building in developing countries

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definition essay about sustainability

Sustainable Development Goals Integration

United Nations Sustainable Development Logo

The Sustainable Development Agenda

presentation image of children holding signs of each of the 17 development goals

17 Goals for People, for Planet

World leaders came together in 2015 and made a historic promise to secure the rights and well-being of everyone on a healthy, thriving planet when they adopted the 2030 Agenda for Sustainable Development and its 17 Sustainable Development Goals (SDGs) .

The Agenda remains the world’s roadmap for ending poverty, protecting the planet and tackling inequalities. The 17 SDGs, the cornerstone of the Agenda, offer the most practical and effective pathway to tackle the causes of violent conflict, human rights abuses, climate change and environmental degradation and aim to ensure that no one will be left behind. The SDGs reflect an understanding that sustainable development everywhere must integrate economic growth, social well-being and environmental protection.

Keeping the Promise

While a fragile global economy, rising conflicts and the climate emergency have placed the promise of the Goals in peril, we can still turn things around in the remaining seven years. Notably, there has been some SDG success since 2015 with improvements in key areas, including poverty reduction, child mortality, electricity access and the battle against certain diseases.

Countries continue to supercharge efforts to achieve the SDGs. We see this at the annual High-Level Political Forum on Sustainable Development — the central platform for reviewing progress on the SDGs — where for the last eight years, countries, civil society and businesses have gathered to showcase the bold actions they are taking to achieve the SDGs.

Summit of the Future

definition essay about sustainability

Heads of State and Government will gather at UN Headquarters in New York on 22-23 September 2024 to address the critical challenges and gaps in global governance exposed by recent global shocks. This Summit aims to reaffirm commitments to the  Sustainable Development Goals (SDGs)  and the United Nations Charter while enhancing cooperation and laying the foundations for a reinvigorated multilateral system. The Summit will result in a negotiated Pact for the Future, an action-oriented document aimed to bolster global cooperation and adapt to current challenges effectively for the benefit of all and for future generations. In addition, the Secretary-General of the United Nations is convening the  Summit of the Future Action Days  on 20 and 21 September 2024 to generate additional opportunities for the engagement of all actors.

SDG Report 2024

definition essay about sustainability

The annual SDG reports provide an overview of the world’s implementation efforts to date, highlighting areas of progress and where more action needs to be taken. They are prepared by the UN Department of Economic and Social Affairs, with input from international and regional organizations and the United Nations system of agencies, funds and programmes. Several national statisticians, experts from civil society and academia also contribute to the reports.

Frequently Asked Questions

definition essay about sustainability

What is sustainable development?

  • Sustainable development has been defined as development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
  • Sustainable development calls for concerted efforts towards building an inclusive, sustainable and resilient future for people and planet.
  • For sustainable development to be achieved, it is crucial to harmonize three core elements: economic growth, social inclusion and environmental protection. These elements are interconnected and all are crucial for the well-being of individuals and societies.
  • Eradicating poverty in all its forms and dimensions is an indispensable requirement for sustainable development. To this end, there must be promotion of sustainable, inclusive and equitable economic growth, creating greater opportunities for all, reducing inequalities, raising basic standards of living, fostering equitable social development and inclusion, and promoting integrated and sustainable management of natural resources and ecosystems.

How will the Sustainable Development Goals be implemented?

  • The Addis Ababa Action Agenda  that came out of the Third International Conference on Financing for Development provided concrete policies and actions to support the implementation of the new agenda.
  • Implementation and success will rely on countries’ own sustainable development policies, plans and programmes, and will be led by countries. The Sustainable Development Goals (SDGs) will be a compass for aligning countries’ plans with their global commitments.
  • Nationally owned and country-led sustainable development strategies will require resource mobilization and financing strategies.
  • All stakeholders: governments, civil society, the private sector, and others, are expected to contribute to the realisation of the new agenda.
  • A revitalized global partnership at the global level is needed to support national efforts. This is recognized in the 2030 Agenda.
  • Multi-stakeholder partnerships have been recognized as an important component of strategies that seek to mobilize all stakeholders around the new agenda.

How will the Sustainable Development Goals be monitored?

  • At the global level, the 17 Sustainable Development Goals (SDGs) and 169 targets of the new agenda will be monitored and reviewed using a set of global indicators. The global indicator framework for Sustainable Development Goals was developed by the Inter-Agency and Expert Group on SDG Indicators (IAEG-SDGs) and agreed upon at the 48 th  session of the United Nations Statistical Commission held in March 2017.
  • Governments will also develop their own national indicators to assist in monitoring progress made on the goals and targets.
  • Chief statisticians from Member States are working on the identification of the targets with the aim to have 2 indicators for each target. There will be approximately 300 indicators for all the targets. Where the targets cover cross-cutting issues, however, the number of indicators may be reduced.
  • The follow-up and review process will be informed by an annual SDG Progress Report to be prepared by the Secretary-General.
  • The annual meetings of the High-level Political Forum on sustainable development will play a central role in reviewing progress towards the SDGs at the global level. The means of implementation of the SDGs will be monitored and reviewed as outlined in the Addis Ababa Action Agenda, the outcome document of the Third International Conference on Financing for Development, to ensure that financial resources are effectively mobilized to support the new sustainable development agenda.

How much will the implementation of this sustainable development agenda cost?

  • To achieve the Sustainable Development Goals, annual investment requirements across all sectors have been estimated at around $5-7 trillion. Current investment levels are far from the scale needed. With global financial assets estimated at over $200 trillion, financing is available, but most of these resources are not being channeled towards sustainable development at the scale and speed necessary to achieve the SDGs and objectives of the Paris Agreement on climate change.
  • Interest and investment in the Sustainable Development Goals are growing and investment in the Goals makes economic sense. Achieving the SDGs could open up US$12 trillion of market opportunities and create 380 million new jobs by 2030.
  • The  Global Investors for Sustainable Development Alliance , a UN-supported coalition of 30 business leaders  announced  in October 2019, works to provide decisive leadership in mobilizing resources for sustainable development and identifying incentives for long-term sustainable investments.Net Official Development Assistance totaled $149 billion in 2018, down by 2.7% in real terms from 2017.

How does climate change relate to sustainable development?

  • Climate change is already impacting public health, food and water security, migration, peace and security. Climate change, left unchecked, will roll back the development gains we have made over the last decades and will make further gains impossible.
  • Investments in sustainable development will help address climate change by reducing greenhouse gas emissions and building climate resilience.
  • Conversely, action on climate change will drive sustainable development.
  • Tackling climate change and fostering sustainable development are two mutually reinforcing sides of the same coin; sustainable development cannot be achieved without climate action. Conversely, many of the SDGs are addressing the core drivers of climate change.

Are the Sustainable Development Goals legally binding?

  • No. The Sustainable Development Goals (SDGs) are not legally binding.
  • Nevertheless, countries are expected to take ownership and establish a national framework for achieving the 17 Goals.
  • Implementation and success will rely on countries’ own sustainable development policies, plans and programmes.
  • Countries have the primary responsibility for follow-up and review, at the national, regional and global levels, with regard to the progress made in implementing the Goals and targets by 2030.
  • Actions at the national level to monitor progress will require quality, accessible and timely data collection and regional follow-up and review.

How are the Sustainable Development Goals different from the MDGs?

  • The 17 Sustainable Development Goals (SDGs) with 169 targets are broader in scope and go further than the MDGs by addressing the root causes of poverty and the universal need for development that works for all people. The goals cover the three dimensions of sustainable development: economic growth, social inclusion and environmental protection.
  • Building on the success and momentum of the MDGs, the new goals cover more ground, with ambitions to address inequalities, economic growth, decent jobs, cities and human settlements, industrialization, oceans, ecosystems, energy, climate change, sustainable consumption and production, peace and justice.
  • The new Goals are universal and apply to all countries, whereas the MDGs were intended for action in developing countries only.
  • A core feature of the SDGs is their strong focus on means of implementation—the mobilization of financial resources—capacity-building and technology, as well as data and institutions.
  • The new Goals recognize that tackling climate change is essential for sustainable development and poverty eradication. SDG 13 aims to promote urgent action to combat climate change and its impacts.

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  1. Explainer: What Is Sustainability and Why Is It Important?

    The term 'sustainable' is used all around us, from food packaging to clothing companies. But what is sustainability and why is it important?

  2. Sustainability

    Sustainability, the long-term viability of a community, set of social institutions, or societal practice. Sustainability is usually understood as a form of intergenerational ethics that accommodates the economic, social, and environmental needs of current and future generations.

  3. What Is Sustainability? (And Why Is It Important)

    Learn about the concept of sustainability and why it's important for maintaining a balance between our environment and economic growth.

  4. Sustainability

    Sustainability is the practice of using natural resources responsibly, so they can support both present and future generations. Forests are one natural resource that sustainability groups are focused on conserving. Forests made up about 30 percent of Earth's land mass in 2015, but that number is at risk of decreasing.

  5. What Is & Importance of Sustainability for a Green Future

    Discover the importance of sustainability, its history and three pillars. Explore green careers and environmental science's role in a sustainable future.

  6. Sustainability

    Sustainability is a social goal for people to co-exist on Earth over a long period of time. Definitions of this term are disputed and have varied with literature, context, and time. [2][1] Sustainability usually has three dimensions (or pillars): environmental, economic, and social. [1] Many definitions emphasize the environmental dimension. [3][4] This can include addressing key environmental ...

  7. What is Sustainability?

    Sustainable practices support ecological, human, and economic health and vitality. Sustainability presumes that resources are finite, and should be used conservatively and wisely with a view to long-term priorities and consequences of the ways in which resources are used. In simplest terms, sustainability is about our children and our grandchildren, and the world we will leave them.

  8. Sustainability Essay

    Sustainability is defined as, "the ability to continue a defined behavior indefinitely." ("Finding and Resolving the Root Causes of the Sustainability Problem", 2014) There are three pillars that make up overall sustainability: social, economic, and environmental sustainability. Social sustainability focuses on all human needs being met and ...

  9. Sustainable development

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