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Wegman Report
The Wegman Report (officially called the Ad Hoc Committee Report on the 'Hockey Stick' Global Climate Reconstruction) was prepared in 2006 by three statisticians led by Edward Wegman at the request of Rep. Joe Barton of the United States House Committee on Energy and Commerce to validate criticisms made by Stephen McIntyre and Ross McKitrick of reconstructions of the temperature record of the past 1000 years, in particular the reconstructions by Mann, Bradley and Hughes of what had been dubbed the hockey stick graph. Background Investigations of paleoclimate date back to the 1930s, but quantitative methods were slow to come into use. In the 1960s, Hubert Lamb generalised from historical documents and temperature records of central England to propose a Medieval Warm Period from around 900 to 1300, followed by Little Ice Age. This was the basis of a "schematic diagram" featured in the IPCC First Assessment Report beside cautions that the medieval warming might not have been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Wegman
Edward Wegman is an American statistician and was a professor of statistics at George Mason University until his retirement in 2018. He holds a Ph.D. in mathematical statistics and is a Fellow of the American Statistical Association, a Senior Member of the IEEE, and past chair of the National Research Council Committee on Applied and Theoretical Statistics. In addition to his work in the field of statistical computing, Wegman contributed a report to a Congressional hearing on climate change at the request of Republican Rep. Joe Barton. Wegman's report supported criticisms of the methodology of two specific paleoclimate studies into the temperature record of the past 1000 years, and argued that climate scientists were excessively isolated from the statistical mainstream. Subsequently, significant portions of Wegman's report were found to have been copied without attribution from a variety of sources, including Wikipedia, and a publication based on the report was retracted. Caree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hockey Stick Graph (global Temperature)
Hockey stick graphs present the global or hemispherical mean temperature record of the past 500 to 2000 years as shown by quantitative climate reconstructions based on climate proxy records. These reconstructions have consistently shown a slow long term cooling trend changing into relatively rapid warming in the 20th century, with the instrumental temperature record by 2000 exceeding earlier temperatures. The term ''hockey stick graph'' was popularized by the climatologist Jerry Mahlman, to describe the pattern shown by the (MBH99) reconstruction, envisaging a graph that is relatively flat with a downward trend to 1900 as forming an ice hockey stick's "shaft" followed by a sharp, steady increase corresponding to the "blade" portion. The reconstructions have featured in Intergovernmental Panel on Climate Change (IPCC) reports as evidence of global warming. Arguments over the reconstructions have been taken up by fossil fuel industry funded lobbying groups attempting to cast d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temperature Record
The global temperature record shows the fluctuations of the temperature of the atmosphere and the oceans through various spans of time. There are numerous estimates of temperatures since the end of the Pleistocene glaciation, particularly during the current Holocene epoch. Some temperature information is available through geologic evidence, going back millions of years. More recently, information from Ice core, ice cores covers the period from 800,000 years before the present time until now. A study of the Paleoclimatology, paleoclimate covers the time period from 12,000 years ago to the present. Tree Rings, Tree rings and measurements from ice cores can give evidence about the global temperature from 1,000-2,000 years before the present until now. The most detailed information exists since 1850, when Instrumental temperature record, methodical thermometer-based records began. Geologic evidence (millions of years) On longer time scales, sediment cores show that the cycl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soon And Baliunas Controversy
The Soon and Baliunas controversy involved the publication in 2003 of a review study written by the aerospace engineer Willie Soon and astronomer Sallie Baliunas in the journal ''Climate Research'', which was quickly taken up by the George W. Bush administration as a basis for amending the first Environmental Protection Agency's ''Report on the Environment''. The paper was strongly criticized by numerous scientists for its methodology and for its misuse of data from previously published studies, which prompted concerns about the peer review process of the paper. The controversy resulted in the resignation of half of the editors of the journal and in the admission by its publisher, Otto Kinne, that the paper should not have been published as it was. Context: IPCC and the Kyoto protocol By the late 1980s scientific findings indicated that greenhouse gases including emissions were leading to global warming. There was increasing public and political interest, and in 1987 the W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Protection Agency
A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution. A biophysical environment can vary in scale from microscopic to global in extent. It can also be subdivided according to its attributes. Examples include the marine environment, the atmospheric environment and the terrestrial environment. The number of biophysical environments is countless, given that each living organism has its own environment. The term ''environment'' can refer to a singular global environment in relation to humanity, or a local biophysical environment, e.g. the UK's Environment Agency. Life-environment interaction All life that has survived must have adapted to the conditions of its environment. Temperature, light, humidity, soil nutrients, etc., all influence the species within an environment. However, life in turn modifies, in various forms, its conditions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Cooney
Philip A. Cooney (born July 16, 1959) is a former member of the administration of United States President George W. Bush. Before being appointed to chair the Council on Environmental Quality, he was a lawyer and lobbyist for the American Petroleum Institute. He was accused of doctoring and changing scientific reports about global warming by other agencies. He then resigned his position and denied any wrongdoing. Career American Petroleum Institute Prior to working for the Bush Administration, Cooney was a lawyer and lobbyist for the American Petroleum Institute (API), an industry group representing the American petroleum industry. Bush administration Cooney joined the George W. Bush administration when he was appointed chief of staff of the Council on Environmental Quality. On June 10, 2005, Cooney announced his resignation, two days after the story of his tampering with scientific reports broke. It was reported that he had altered government climate reports to downplay sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Presidency Of George W
A presidency is an administration or the executive, the collective administrative and governmental entity that exists around an office of president of a state or nation. Although often the executive branch of government, and often personified by a single elected person who holds the office of "president", in practice, the presidency includes a much larger collective of people, such as chiefs of staff, advisers and other bureaucrats. Although often led by a single person, presidencies can also be of a collective nature, such as the presidency of the European Union is held on a rotating basis by the various national governments of the member states. Alternatively, the term presidency can also be applied to the governing authority of some churches, and may even refer to the holder of a non-governmental office of president in a corporation, business, charity, university, etc. or the institutional arrangement around them. For example, "the presidency of the Red Cross refused to suppo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyoto Protocol
The Kyoto Protocol was an international treaty which extended the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits state parties to reduce greenhouse gas emissions, based on the scientific consensus that (part one) global warming is occurring and (part two) that human-made CO2 emissions are driving it. The Kyoto Protocol was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005. There were 192 parties ( Canada withdrew from the protocol, effective December 2012) to the Protocol in 2020. The Kyoto Protocol implemented the objective of the UNFCCC to reduce the onset of global warming by reducing greenhouse gas concentrations in the atmosphere to "a level that would prevent dangerous anthropogenic interference with the climate system" (Article 2). The Kyoto Protocol applied to the seven greenhouse gases listed in Annex A: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Consensus
Scientific consensus is the generally held judgment, position, and opinion of the majority or the supermajority of scientists in a particular field of study at any particular time. Consensus is achieved through scholarly communication at conferences, the publication process, replication of reproducible results by others, scholarly debate, and peer review. A conference meant to create a consensus is termed as a consensus conference. Such measures lead to a situation in which those within the discipline can often recognize such a consensus where it exists; however, communicating to outsiders that consensus has been reached can be difficult, because the "normal" debates through which science progresses may appear to outsiders as contestation. On occasion, scientific institutes issue position statements intended to communicate a summary of the science from the "inside" to the "outside" of the scientific community, or consensus review articles or surveys may be published. In cases ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IPCC Third Assessment Report
The IPCC Third Assessment Report (TAR), ''Climate Change 2001'', is an assessment of available scientific and socio-economic information on climate change by the IPCC. Statements of the IPCC or information from the TAR are often used as a reference showing a scientific consensus on the subject of global warming, although a small minority of scientists take issue with the UN assessments (see also Global warming controversy and Politics of global warming). The Third Assessment Report (TAR) was completed in 2001 and consists of four reports, three of them from its Working Groups: Working Group I: The Scientific Basis;TAR Working Group 1 IPCC. Working Group II: Impacts, Adaptation and Vulnerability;TAR Working ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Hockey Stick
An ice hockey stick is a piece of equipment used in ice hockey to shoot, pass, and carry the puck across the ice. Ice hockey sticks are approximately 150–200 cm long, composed of a long, slender shaft with a flat extension at one end called the blade. National Hockey League (NHL) sticks are up to 63 inches (160 cm) long. The blade is the part of the stick used to contact the puck, and is typically 25 to 40 cm long. Stick dimensions can vary widely, as they are usually built to suit a particular player's size and preference. The blade is positioned at roughly a 135° angle from the axis of the shaft, giving the stick a partly 'L-shaped' appearance. The shaft of the stick is fairly rigid, but is slightly elastic to improve shot performance. The blade is slightly curved to aid control of the puck, especially in shooting. The direction of the curve depends on the side of the body the player wields the stick on. The goaltender has a slightly modified stick. The lower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jerry Mahlman
Jerry Mahlman (February 21, 1940 – November 28, 2012) was an American meteorologist and climatologist. Biography Mahlman was born on February 21, 1940 in Crawford, Nebraska, and received his undergraduate degree from Chadron State College in 1962 and his Ph.D. from Colorado State University in 1967. From 1970 until 2000 he worked at the Geophysical Fluid Dynamics Laboratory of the National Oceanic and Atmospheric Administration at Princeton, New Jersey, Princeton, serving as director from 1984-2000. He was most recently a Senior Research Associate at the National Center for Atmospheric Research. Mahlman died on November 28, 2012, in Buffalo Grove, Illinois, at the age of 72. Mahlman was a pioneer in the use of computational models of the atmosphere to examine the interactions between atmospheric chemistry and physics. His early work focussed on understanding the distribution of fallout from atmospheric nuclear bomb tests. He then became interested in the physics of transport in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
