Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear fission of uranium and plutonium in nuclear power plants. Nuclear decay processes are used in niche applications such as radioisotope thermoelectric generators in some space probes such as Voyager 2. Energy production from controlled fusion power can potentially eliminate some resource restriction facing fission power, but it is not expected to be commercially available in the near future.
Energy is sustainable if it "meets the needs of the present without compromising the ability of future generations to meet their own needs." Definitions of sustainable energy usually look at its effects on the environment, the economy, and society. These impacts range from greenhouse gas emissions and air pollution to energy poverty and toxic waste. Renewable energy sources such as wind, hydro, solar, and geothermal energy can cause environmental damage but are generally far more sustainable than fossil fuel sources.
Energy policies are the government's strategies and decisions regarding the production, distribution, and consumption of energy within a specific jurisdiction. Energy is essential for the functioning of modern economies because they require energy for many sectors, such as industry, transport, agriculture, housing. The main components of energy policy include legislation, international treaties, energy subsidies and other public policy techniques.
Climate change mitigation (or decarbonisation) is action to limit the greenhouse gases in the atmosphere that cause climate change. Climate change mitigation actions include conserving energy and replacing fossil fuels with clean energy sources. Secondary mitigation strategies include changes to land use and removing carbon dioxide (CO2) from the atmosphere. Current climate change mitigation policies are insufficient as they would still result in global warming of about 2.7 °C by 2100, significantly above the 2015 Paris Agreement's goal of limiting global warming to below 2 °C.
The politics of climate change results from different perspectives on how to respond to climate change. Global warming is driven largely by the emissions of greenhouse gases due to human economic activity, especially the burning of fossil fuels, certain industries like cement and steel production, and land use for agriculture and forestry. Since the Industrial Revolution, fossil fuels have provided the main source of energy for economic and technological development. The centrality of fossil fuels and other carbon-intensive industries has resulted in much resistance to climate friendly policy, despite widespread scientific consensus that such policy is necessary.
Nuclear energy policy is a national and international policy concerning some or all aspects of nuclear energy and the nuclear fuel cycle, such as uranium mining, ore concentration, conversion, enrichment for nuclear fuel, generating electricity by nuclear power, storing and reprocessing spent nuclear fuel, and disposal of radioactive waste. Nuclear energy policies often include the regulation of energy use and standards relating to the nuclear fuel cycle. Other measures include efficiency standards, safety regulations, emission standards, fiscal policies, and legislation on energy trading, transport of nuclear waste and contaminated materials, and their storage. Governments might subsidize nuclear energy and arrange international treaties and trade agreements about the import and export of nuclear technology, electricity, nuclear waste, and uranium.
A low-carbon economy (LCE) is an economy which absorbs as much greenhouse gas as it emits. Greenhouse gas (GHG) emissions due to human activity are the dominant cause of observed climate change since the mid-20th century. There are many proven approaches for moving to a low-carbon economy, such as encouraging renewable energy transition, energy conservation, and electrification of transportation. An example are zero-carbon cities.
Mark Diesendorf is an Australian academic and environmentalist, known for his work in sustainable development and renewable energy. He currently researches 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 books are The Path to a Sustainable Civilisation (2023) and Sustainable Energy Solutions for Climate Change (2014).
Renewable energy commercialization involves the deployment of three generations of renewable energy technologies dating back more than 100 years. First-generation technologies, which are already mature and economically competitive, include biomass, hydroelectricity, geothermal power and heat. Second-generation technologies are market-ready and are being deployed at the present time; they include solar heating, photovoltaics, wind power, solar thermal power stations, and modern forms of bioenergy. Third-generation technologies require continued R&D efforts in order to make large contributions on a global scale and include advanced biomass gasification, hot-dry-rock geothermal power, and ocean energy. In 2019, nearly 75% of new installed electricity generation capacity used renewable energy and the International Energy Agency (IEA) has predicted that by 2025, renewable capacity will meet 35% of global power generation.
Energy and American Society: Thirteen Myths is a 2007 book about energy security and climate change, edited by Benjamin K. Sovacool and Marilyn A. Brown. The book is suitable for both technical and non-technical audiences since it is written in plain English and is "easily digested by anyone with a rudimentary background or interest in energy economics".
100% renewable energy is the goal of the use renewable resources for all energy. 100% renewable energy for electricity, heating, cooling and transport is motivated by climate change, pollution and other environmental issues, as well as economic and energy security concerns. Shifting the total global primary energy supply to renewable sources requires a transition of the energy system, since most of today's energy is derived from non-renewable fossil fuels.
The nuclear power debate is a long-running controversy about the risks and benefits of using nuclear reactors to generate electricity for civilian purposes. The debate about nuclear power peaked during the 1970s and 1980s, as more and more reactors were built and came online, and "reached an intensity unprecedented in the history of technology controversies" in some countries. In the 2010s, with growing public awareness about climate change and the critical role that carbon dioxide and methane emissions plays in causing the heating of the Earth's atmosphere, there was a resurgence in the intensity of the nuclear power debate.
Mark Zachary Jacobson is a professor of civil and environmental engineering at Stanford University and director of its Atmosphere/Energy Program. He is also a co-founder of the non-profit, Solutions Project.
The Dirty Energy Dilemma: What’s Blocking Clean Power in the United States is a 2008 book by academic Benjamin K. Sovacool, published by Praeger. In the book, Sovacool explores problems with the current U.S. electricity system and ways to overcome them.
Marilyn A. Brown is a Regents' and Brook Byers Professor of Sustainable Systems in the School of Public Policy at the Georgia Institute of Technology. She joined Georgia Tech in 2006 after 22 years at Oak Ridge National Laboratory, where she held various leadership positions. Her work was cited by President Clinton as providing the scientific justification for signing the 1997 Kyoto Protocol. With Eric Hirst, she coined the term "energy efficiency gap" and pioneered research to highlight and quantify the unexploited economic potential to use energy more productively.
Contesting the Future of Nuclear Power: A Critical Global Assessment of Atomic Energy is a 2011 book by Benjamin K. Sovacool, published by World Scientific. Sovacool's book addresses the current status of the global nuclear power industry, its fuel cycle, nuclear accidents, environmental impacts, social risks, energy payback, nuclear power economics, and industry subsidies. There is a postscript on the Japanese 2011 Fukushima nuclear disaster. Based on detailed analysis, Sovacool concludes "that a global nuclear renaissance would bring immense technical, economic, environmental, political, and social costs". He says that it is renewable energy technologies which will enhance energy security, and which have many other advantages.
Climate Change and Global Energy Security: Technology and Policy Options is a 2011 book by Marilyn A. Brown and Benjamin K. Sovacool, in which the authors offer detailed assessments of commercially available technologies for strengthening global energy security and climate change mitigation. They also evaluate the barriers to the deployment of these technologies and critically review public policy options for their commercialization. Arguing that society has all the technologies necessary for the task, they discuss an array of options available today, including high-efficiency transportation, renewable energy, carbon sequestration, and demand side management.
The Energiewende is the ongoing energy transition by Germany. The new system intends to rely heavily on renewable energy, energy efficiency, and energy demand management.
An energy transition is a major structural change to energy supply and consumption in an energy system. Currently, a transition to sustainable energy is underway to limit climate change. Most of the sustainable energy is renewable energy. Therefore, another term for energy transition is renewable energy transition. The current transition aims to reduce greenhouse gas emissions from energy quickly and sustainably, mostly by phasing-down fossil fuels and changing as many processes as possible to operate on low carbon electricity. A previous energy transition perhaps took place during the Industrial Revolution from 1760 onwards, from wood and other biomass to coal, followed by oil and later natural gas.
Energy Research & Social Science is a peer-reviewed academic journal covering social science research on energy systems and energy and society, including anthropology, economics, geography, psychology, political science, social policy, sociology, science and technology studies and legal studies. It was established in 2014 and is now among the most highly ranked journals on energy and social sciences. It is published by Elsevier. The editor-in-chief is Benjamin K. Sovacool.
