The scientific community has been investigating the causes of climate change for decades. After thousands of studies, it came to a consensus, where it is "unequivocal that human influence has warmed the atmosphere, ocean and land since pre-industrial times." This consensus is supported by around 200 scientific organizations worldwide, The dominant role in this climate change has been played by the direct emissions of carbon dioxide from the burning of fossil fuels. Indirect CO2 emissions from land use change, and the emissions of methane, nitrous oxide and other greenhouse gases play major supporting roles.
The Intergovernmental Panel on Climate Change (IPCC) is an intergovernmental body of the United Nations. Its job is to advance scientific knowledge about climate change caused by human activities. The World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP) set up the IPCC in 1988. The United Nations endorsed the creation of the IPCC later that year. It has a secretariat in Geneva, Switzerland, hosted by the WMO. It has 195 member states who govern the IPCC. The member states elect a bureau of scientists to serve through an assessment cycle. A cycle is usually six to seven years. The bureau selects experts in their fields to prepare IPCC reports. There is a formal nomination process by governments and observer organizations to find these experts. The IPCC has three working groups and a task force, which carry out its scientific work.
The National Oceanic and Atmospheric Administration is an American scientific and regulatory agency charged with forecasting weather, monitoring oceanic and atmospheric conditions, charting the seas, conducting deep-sea exploration, and managing fishing and protection of marine mammals and endangered species in the US exclusive economic zone. The agency is part of the United States Department of Commerce and is headquartered in Silver Spring, Maryland.
There is a nearly unanimous scientific consensus that the Earth has been consistently warming since the start of the Industrial Revolution, that the rate of recent warming is largely unprecedented, and that this warming is mainly the result of a rapid increase in atmospheric carbon dioxide (CO2) caused by human activities. The human activities causing this warming include fossil fuel combustion, cement production, and land use changes such as deforestation, with a significant supporting role from the other greenhouse gases such as methane and nitrous oxide. This human role in climate change is considered "unequivocal" and "incontrovertible".
The National Climate Assessment (NCA) is an initiative within the U.S. federal government focused on climate change science, formed under the auspices of the Global Change Research Act of 1990.
The Nazi War Crimes and Japanese Imperial Government Records Interagency Working Group is a United States government interagency group, which is tasked with locating, identifying, inventorying, and recommending for declassification classified U.S. records relating to Nazi German and Imperial Japanese war crimes.
The Global Change Research Act 1990 is a United States law requiring research into global warming and related issues. It requires a report to Congress every four years on the environmental, economic, health and safety consequences of climate change.
The North American Carbon Program (NACP) is a community-driven element of the U.S. Carbon Cycle Science Program, which established it as one of the major elements of the 2002 Strategic Plan for the U.S. Climate Change Science Program (now called the US Global Change Research Program or USGCRP). The central objective of NACP is to measure and understand carbon stocks and sources and sinks of carbon dioxide (CO2), methane (CH4), and carbon monoxide (CO) in North America and adjacent ocean regions.
The Climate Change Science Program (CCSP) was the program responsible for coordinating and integrating research on global warming by U.S. government agencies from February 2002 to June 2009. Toward the end of that period, CCSP issued 21 separate climate assessment reports that addressed climate observations, changes in the atmosphere, expected climate change, impacts and adaptation, and risk management issues. Shortly after President Obama took office, the program's name was changed to U.S. Global Change Research Program (USGCRP) which was also the program's name before 2002. Nevertheless, the Obama Administration generally embraced the CCSP products as sound science providing a basis for climate policy. Because those reports were mostly issued after the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), and in some cases focused specifically on the United States, they were generally viewed within the United States as having an importance and scientific credibility comparable to the IPCC assessments for the first few years of the Obama Administration.
The social cost of carbon (SCC) is the marginal cost of the impacts caused by emitting one extra tonne of carbon emissions at any point in time. The purpose of putting a price on a tonne of emitted CO2 is to aid policymakers or other legislators in evaluating whether a policy designed to curb climate change is justified. The social cost of carbon is a calculation focused on taking corrective measures on climate change which can be deemed a form of market failure. The only governments which use the SCC are in North America. The Intergovernmental Panel on Climate Change suggested that a carbon price of $100 per tonne of CO2 could reduce global GHG emissions by at least half the 2019 level by 2030.
The National Oceanographic Partnership Program (NOPP) facilitates interagency and multi-sectoral partnerships to address federal ocean science and technology research priorities. Through this collaboration, federal agencies can leverage resources to invest in priorities that fall between agency missions or are too large for any single agency to support. In its first 20 years, NOPP invested more than $468 million to support over 200 research and education projects with over 600 partners. A comparable amount of in-kind support has been committed by the research and education community.
The Arctic policy of the United States is the foreign policy of the United States in regard to the Arctic region. In addition, the United States' domestic policy toward Alaska is part of its Arctic policy.
Michael Calvin MacCracken, has been chief scientist for climate change programs with the Climate Institute in Washington, D.C., since 2002; he was also elected to its board of directors in 2006.
The Networking and Information Technology Research and Development (NITRD) program consists of a group of U.S. federal agencies to research and develop information technology (IT) capabilities to empower Federal missions; support U.S. science, engineering, and technology leadership; and bolster U.S. economic competitiveness.
The White House Initiative on Asian Americans, Native Hawaiians, and Pacific Islanders (WHIAANHPI) is a United States governmental office that coordinates an ambitious whole-of-government approach to advance equity, justice, and opportunity for Asian Americans, Native Hawaiians, and Pacific Islanders. The Initiative collaborates with the Deputy Assistant to the President and AA and NHPI Senior Liaison, White House Office of Public Engagement and designated federal departments and agencies to advance equity, justice, and opportunity for AA and NHPIs in the areas of economic development, education, health and human services, housing, environment, arts, agriculture, labor and employment, transportation, justice, veterans affairs, and community development.
Climate change in Tennessee encompasses the effects of climate change, attributed to man-made increases in atmospheric carbon dioxide, in the U.S. state of Tennessee.
Wildfires can happen in many places in the United States, especially during droughts, but are most common in the Western United States and Florida. They may be triggered naturally, most commonly by lightning, or by human activity like unextinguished smoking materials, faulty electrical equipment, overheating automobiles, or arson.
Fourth National Climate Assessment (NCA4) 2017/2018 is a 1,500 page two-part congressionally mandated report by the U.S. Global Change Research Program (USGCRP)—the first of its kind by the Trump administration, who released the report on November 23, 2018. The climate assessment process, with a report to be submitted to Congress every four years, is mandated by law through the Global Change Research Act of 1990. The report, which took two years to complete, is the fourth in a series of National Climate Assessments (NCA) which included NCA1 (2000), NCA2 (2009), and NCA3 (2014).
Maria Carmen de Mello Lemos is Professor of Environment and Sustainability and co-director of the Great Lakes Integrated Sciences and Assessments Center at the University of Michigan, Ann Arbor, and Senior Policy Scholar at the Udall Center for the Study of Public Policy at the University of Arizona. Lemos is an established climate policy analyst whose research focuses primarily on environmental public policymaking in Latin America and the US, especially related to climate change adaptation and adaptive capacity building.
