A thought experiment is a hypothetical situation in which a hypothesis, theory, or principle is laid out for the purpose of thinking through its consequences.
The Limits to Growth (LTG) is a 1972 report that discussed the possibility of exponential economic and population growth with finite supply of resources, studied by computer simulation. The study used the World3 computer model to simulate the consequence of interactions between the earth and human systems. The model was based on the work of Jay Forrester of MIT, as described in his book World Dynamics.
The International Energy Agency (IEA) is a Paris-based autonomous intergovernmental organisation, established in 1974, that provides policy recommendations, analysis and data on the entire global energy sector. The 31 member countries and 11 association countries of the IEA represent 75% of global energy demand.
Energy is sustainable if it "meets the needs of the present without compromising the ability of future generations to meet their own needs." Most definitions of sustainable energy include considerations of environmental aspects such as greenhouse gas emissions and social and economic aspects such as energy poverty. Renewable energy sources such as wind, hydroelectric power, solar, and geothermal energy are generally far more sustainable than fossil fuel sources. However, some renewable energy projects, such as the clearing of forests to produce biofuels, can cause severe environmental damage.
The Natural Step is a non-profit, non-governmental organisation founded in Sweden in 1989 by scientist Karl-Henrik Robèrt. The Natural Step is also used when referring to the partially open source framework it developed. Following publication of the Brundtland Report in 1987, Robèrt developed The Natural Step framework, setting out the system conditions for the sustainability of human activities on Earth; Robèrt's four system conditions are derived from a scientific understanding of universal laws and the aspects of our socio-ecological system, including the laws of gravity, the laws of thermodynamics and a multitude of social studies.
Food engineering is a scientific, academic, and professional field that interprets and applies principles of engineering, science, and mathematics to food manufacturing and operations, including the processing, production, handling, storage, conservation, control, packaging and distribution of food products. Given its reliance on food science and broader engineering disciplines such as electrical, mechanical, civil, chemical, industrial and agricultural engineering, food engineering is considered a multidisciplinary and narrow field.
The economics of climate change concerns the economic aspects of climate change; this can inform policies that governments might consider in response. A number of factors make this and the politics of climate change a difficult problem: it is a long-term, intergenerational problem; benefits and costs are distributed unequally both within and across countries; and both the scientific consensus and public opinion on climate change need to be taken into account.
Backcasting is a planning method that starts with defining a desirable future and then works backwards to identify policies and programs that will connect that specified future to the present. The fundamentals of the method were outlined by John B. Robinson from the University of Waterloo in 1990. The fundamental question of backcasting asks: "if we want to attain a certain goal, what actions must be taken to get there?"
Energy descent is a process whereby a society either voluntarily or involuntarily reduces its total energy consumption.
Mark Diesendorf is an Australian academic and environmentalist, known for his work in sustainable development and renewable energy. He currently teaches environmental studies at the University of New South Wales, Australia. He was formerly professor of environmental science and founding director of the Institute for Sustainable Futures at the University of Technology, Sydney and before that a principal research scientist with CSIRO, where he was involved in early research on integrating wind power into electricity grids. His most recent book is Sustainable Energy Solutions for Climate Change.
The German Advisory Council on Global Change is an independent, scientific advisory body to the German Federal Government, established in 1992 in the run-up to the Rio Earth Summit (UNCED).
Climate risk refers to risk assessments based on formal analysis of the consequences, likelihoods and responses to the impacts of climate change and how societal constraints shape adaptation options. Common approaches to risk assessment and risk management strategies based on natural hazards have been applied to climate change impacts although there are distinct differences. Based on a climate system that is no longer staying within a stationary range of extremes, climate change impacts are anticipated to increase for the coming decades despite mitigation efforts. Ongoing changes in the climate system complicates assessing risks. Applying current knowledge to understand climate risk is further complicated due to substantial differences in regional climate projections, expanding numbers of climate model results, and the need to select a useful set of future climate scenarios in their assessments.
Degrowth is a term used for both a political, economic, and social movement as well as a set of theories that critique the paradigm of economic growth. It can be described as an extensive framework that is based on critiques of the growth-centered economic system in which we are living. Degrowth is based on ideas from a diverse range of lines of thought such as political ecology, ecological economics, feminist political ecology, and environmental justice, pointing out the social and ecological harm caused by the pursuit of infinite growth and Western "development" imperatives.
Sustainability measurement are a set of frameworks or indicators to measure how sustainable something is. This includes processes, products, services and businesses. Sustainability is difficult to quantify. It may even be impossible to measure. To measure sustainability, the indicators consider environmental, social and economic domains. The metrics are still evolving. They include indicators, benchmarks and audits. They include sustainability standards and certification systems like Fairtrade and Organic. They also involve indices and accounting. And they can include assessment, appraisal and other reporting systems. These metrics are used over a wide range of spatial and temporal scales. Sustainability measures include corporate sustainability reporting, Triple Bottom Line accounting. They include estimates of the quality of sustainability governance for individual countries. These use the Environmental Sustainability Index and Environmental Performance Index. Some methods let us track sustainable development. These include the UN Human Development Index and ecological footprints.
Climate change scenarios or socioeconomic scenarios are projections of future greenhouse gas (GHG) emissions used by analysts to assess future vulnerability to climate change. Scenarios and pathways are created by scientists to survey any long term routes and explore the effectiveness of mitigation and helps us understand what the future may hold this will allow us to envision the future of human environment system. Producing scenarios requires estimates of future population levels, economic activity, the structure of governance, social values, and patterns of technological change. Economic and energy modelling can be used to analyze and quantify the effects of such drivers.
Transition management is a governance approach that aims to facilitate and accelerate sustainability transitions through a participatory process of visioning, learning and experimenting. In its application, transition management seeks to bring together multiple viewpoints and multiple approaches in a 'transition arena'. Participants are invited to structure their shared problems with the current system and develop shared visions and goals which are then tested for practicality through the use of experimentation, learning and reflexivity. The model is often discussed in reference to sustainable development and the possible use of the model as a method for change.
Transition scenarios are descriptions of future states which combine a future image with an account of the changes that would need to occur to reach that future. These two elements are often created in a two-step process where the future image is created first (envisioning) followed by an exploration of the alternative pathways available to reach the future goal (backcasting). Both these processes can use participatory techniques where participants of varying backgrounds and interests are provided with an open and supportive group environment to discuss different contributing elements and actions.
An energy transition is a significant structural change in an energy system regarding supply and consumption. Currently, a transition to sustainable energy is underway to limit climate change. It is also called renewable energy transition. The current transition is driven by a recognition that global greenhouse-gas emissions must be drastically reduced. This process involves phasing-down fossil fuels and re-developing whole systems to operate on low carbon energy sources. A previous energy transition took place during the industrial revolution and involved an energy transition from wood and other biomass to coal, followed by oil and most recently natural gas.
Wolfgang Kröger has been full professor of Safety Technology at the ETH Zurich since 1990 and director of the Laboratory of Safety Analysis simultaneously. Before being elected Founding Rector of International Risk Governance Council (IRGC) in 2003, he headed research in nuclear energy and safety at the Paul Scherrer Institut (PSI). After his retirement early 2011 he became the Executive Director of the newly established ETH Risk Center. He has both Swiss and German citizenship and lives in Kilchberg/Zürich. His seminal work lies in the general area of reliability, risk and vulnerability analysis of large-scale technical systems like nuclear power plants of different types and complex engineered networks like power supply systems, the latter coupled to other critical infrastructure and controlled by cyber-physical systems. He is known for his continuing efforts to advance related frameworks, methodology, and tools, to communicate results including uncertainties as well as for his successful endeavor in stimulating trans-disciplinary and trans-sectional cooperation to improve governance of emerging systemic risks. His contributions to shape and operationalize the concept of sustainability and - more recently - the concept of resilience are highly valued. Furthermore, he is in engaged in the evaluation of smart energy systems and future technologies, including new ways of exploiting nuclear energy, and cooperative automated vehicles as a cornerstone of future mobility concepts.
Susan Pran Krumdieck is a New Zealand engineering academic. She was an academic from 2000 to 2020, and the first woman appointed to full professor in engineering in 2014 at the University of Canterbury. She is currently Professor and Chair in Energy Transition at Heriot-Watt University.
