The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available. The carrying capacity is defined as the environment's maximal load, which in population ecology corresponds to the population equilibrium, when the number of deaths in a population equals the number of births. The effect of carrying capacity on population dynamics is modelled with a logistic function. Carrying capacity is applied to the maximum population an environment can support in ecology, agriculture and fisheries. The term carrying capacity has been applied to a few different processes in the past before finally being applied to population limits in the 1950s. The notion of carrying capacity for humans is covered by the notion of sustainable population.
Overconsumption describes a situation where a consumer overuses their available goods and services to where they can't, or don't want to, replenish or reuse them. In microeconomics, this may be described as the point where the marginal cost of a consumer is greater than their marginal utility. The term overconsumption is quite controversial in use and does not necessarily have a single unifying definition. When used to refer to natural resources to the point where the environment is negatively affected, is it synonymous with the term overexploitation. However, when used in the broader economic sense, overconsumption can refer to all types of goods and services, including manmade ones, e.g. "the overconsumption of alcohol can lead to alcohol poisoning". Overconsumption is driven by several factors of the current global economy, including forces like consumerism, planned obsolescence, economic materialism, and other unsustainable business models and can be contrasted with sustainable consumption.
Mattias Klum is a Swedish freelance photographer and film producer in natural history and cultural subjects. He is the son of Swedish academic educator Arne Klum (1925-2016) and Ingegärd Klum, née Stefanson. Klum has worked full-time as a freelance photographer since 1986, and as a cinematographer and director on numerous film and television projects since 1994. Klum describes and portrays animals, plants, and natural and cultural settings in the form of articles, books, films, lectures and exhibitions.
The Tellus Institute is an American non-profit organization established in 1976 with the aim of bringing scientific rigor and systemic vision to critical environmental and social issues. Tellus has conducted thousands of projects throughout the world, and now focuses on the global future and how to shape it.
Stockholm Environment Institute, or SEI, is a non-profit, independent research and policy institute specialising in sustainable development and environmental issues, with seven affiliate offices around the world. SEI works on climate change, energy systems, water resources, air quality, land-use, sanitation, food security, and trade issues with the aim to shift policy and practice towards sustainability.
Sustainability is a social goal for people to co-exist on Earth over a long time. Specific definitions of this term are disputed and have varied with literature, context, and time. Experts often describe sustainability as having three dimensions : environmental, economic, and social, and many publications emphasize the environmental dimension. In everyday use, sustainability often focuses on countering major environmental problems, including climate change, loss of biodiversity, loss of ecosystem services, land degradation, and air and water pollution. The idea of sustainability can guide decisions at the global, national, and individual levels. A related concept is sustainable development, and the terms are often used to mean the same thing. UNESCO distinguishes the two like this: "Sustainability is often thought of as a long-term goal, while sustainable development refers to the many processes and pathways to achieve it."
The Potsdam Institute for Climate Impact Research is a German government-funded research institute addressing crucial scientific questions in the fields of global change, climate impacts, and sustainable development. Ranked among the top environmental think tanks worldwide, it is one of the leading research institutions and part of a global network of scientific and academic institutions working on questions of global environmental change. It is a member of the Leibniz Association, whose institutions perform research on subjects of high relevance to society.
Planetary boundaries are a framework to describe limits to the impacts of human activities on the Earth system. Beyond these limits, the environment may not be able to self-regulate anymore. This would mean the Earth system would leave the period of stability of the Holocene, in which human society developed. Crossing a planetary boundary comes at the risk of abrupt environmental change. The framework is based on scientific evidence that human actions, especially those of industrialized societies since the Industrial Revolution, have become the main driver of global environmental change. According to the framework, "transgressing one or more planetary boundaries may be deleterious or even catastrophic due to the risk of crossing thresholds that will trigger non-linear, abrupt environmental change within continental-scale to planetary-scale systems."
Planetary management is intentional global-scale management of Earth's biological, chemical and physical processes and cycles. Planetary management also includes managing humanity’s influence on planetary-scale processes. Effective planetary management aims to prevent destabilisation of Earth's climate, protect biodiversity and maintain or improve human well-being. More specifically, it aims to benefit society and the global economy, and safeguard the ecosystem services upon which humanity depends – global climate, freshwater supply, food, energy, clean air, fertile soil, pollinators, and so on.
William Lee Steffen was an American-born Australian chemist. He was the executive director of the Australian National University (ANU) Climate Change Institute and a member of the Australian Climate Commission until its dissolution in September 2013. From 1998 to 2004, he was the executive director of the International Geosphere-Biosphere Programme, a coordinating body of national environmental change organisations based in Stockholm. Steffen was one of the founding climate councillors of the Climate Council, with whom he frequently co-authored reports, and spoke in the media on issues relating to climate change and renewable energy.
Johan Rockström is a Swedish scientist, internationally recognized for his work on global sustainability issues. He is joint director of the Potsdam Institute for Climate Impact Research (PIK) in Germany, together with economist Ottmar Edenhofer. He is also Professor in Earth System Science at the University of Potsdam and Professor in Water Systems and Global Sustainability, Stockholm University.
Earth system governance is a recently developed paradigm that builds on earlier notions of environmental policy and nature conservation, but puts these into the broader context of human-induced transformations of the entire earth system.
Carl Folke, is a trans-disciplinary environmental scientist and a member of the Royal Swedish Academy of Sciences. He is a specialist in economics, resilience, and social-ecological systems, viewing such systems as intertwined and potentially unexpected in their interactions. As a framework for resource management, this perspective brings important insights to environmental management, urban planning, and climate adaptation. He suggests ways to improve our ability to understand complex social-ecological interactions, deal with change, and build resilience, often working at smaller scales as a step towards addressing larger scales.
The Stockholm Memorandum is a document signed in May 2011 by many Nobel Laureates based on the verdict from the trial of humanity, which opened the 3rd Nobel Laureate Symposium. The jury of Nobel laureates concluded that Earth has entered a new geological age, which it calls the Anthropocene, in which humans are the most significant driver of global climate change, and in which human collective actions could have abrupt and irreversible consequences for human communities and ecological systems. The memorandum was signed by 20 winner of the Nobel Prize winners or the Sveriges Riksbank Prize for Economic Sciences in Memory of Alfred Nobel was submitted to the United Nations High Level Panel on global sustainability.
Planetary Health is a multi- and transdisciplinary research paradigm, a new science for exceptional action, and a global movement. Planetary Health refers to "the health of human civilization and the state of the natural systems on which it depends". In 2015, the Rockefeller Foundation–Lancet Commission on Planetary Health launched the concept which is currently being developed towards a new health science with over 25 areas of expertise.
Malin Fredrika Sofia Sundberg-Falkenmark, born 21 November 1925) is a Swedish hydrologist. Falkenmark is best known for her long-standing work and expertise on the sustainable use of water resources to meet human and ecosystem needs. Her work is characterized by an integration of both natural- and social-science approaches. She is particularly known for developing what is now known as the Falkenmark Water Stress Indicator, an indicator used to measure and describe the water available for human use. She is the daughter of Halvar Sundberg.
Line Gordon is a Swedish sustainability scientist whose transdisciplinary research combines food, water, and the benefits people receive from nature. Gordon is the director of the Stockholm Resilience Centre and a professor at Stockholm University, Sweden. She is also on the board of the EAT foundation, and often participates in public discussions of food and climate in Sweden.
The planetary health diet is a flexitarian diet created by the EAT-Lancet commission as part of a report released in The Lancet on 16 January 2019. The aim of the report and the diet it developed is to create dietary paradigms that have the following aims:
Beatrice Crona is an ecologist, a professor at Stockholm University, and the Executive Director of the Program on Global Economic Dynamics and the Biosphere at the Royal Swedish Academy of Sciences. In 2023 she became a Science Director of the Stockholm Resilience Centre.
Breaking Boundaries: The Science of Our Planet is a 2021 documentary film directed by Jon Clay, and presented by David Attenborough and Johan Rockström.
