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I = PAT
''I = (PAT)'' is the mathematical notation of a formula put forward to describe the impact of human activity on the environment. :''I = P × A × T'' The expression equates human impact on the environment to a function of three factors: population (P), affluence (A) and technology (T). It is similar in form to the Kaya identity which applies specifically to emissions of the greenhouse gas carbon dioxide. The validity of expressing environmental impact as a simple product of independent factors, and the factors that should be included and their comparative importance, have been the subject of debate among environmentalists. In particular, some have drawn attention to potential inter-relationships among the three factors; and others have wished to stress other factors not included in the formula, such as political and social structures, and the scope for beneficial, as well as harmful, environmental actions. History The equation was developed in 1970 during the course of a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visit Of Sakhali College To Study On Impact Of Mining On Environment And Village Community - 03
Visit refer as go to see and spend time with socially. Visit may refer to: * State visit, a formal visit by a head of state to a foreign country *Conjugal visit, in which a prisoner is permitted to spend several hours or days in private with a visitor, usually a spouse *US-VISIT, a U.S. immigration and border management system * Constable Visit, a fictional character from the Discworld novels by Terry Pratchett *VisIt, interactive parallel visualization and analysis software *Visit (internet), measures an individual's first request for a page on a firm’s server See also *The Visit (other) The Visit may refer to: Film and television * ''The Visit'' (1964 film), a 1964 adaptation of the Friedrich Dürrenmatt play starring Ingrid Bergman * ''The Visit'' (2000 film), directed by Jordan Walker-Pearlman * ''The Visit'' (2015 American fil ... * Visitation (other) {{Disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Growth
Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7.9 billion in 2020. The UN projected population to keep growing, and estimates have put the total population at 8.6 billion by mid-2030, 9.8 billion by mid-2050 and 11.2 billion by 2100. However, some academics outside the UN have increasingly developed human population models that account for additional downward pressures on population growth; in such a scenario population would peak before 2100. World human population has been growing since the end of the Black Death, around the year 1350. A mix of technological advancement that improved agricultural productivity and sanitation and medical advancement that reduced mortality increased population growth. In some geographies, this has slowed through the process called the demographic tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Tonight Show
''The Tonight Show'' is an American late-night talk show that has aired on NBC since 1954. The show has been hosted by six comedians: Steve Allen (1954–1957), Jack Paar (1957–1962), Johnny Carson (1962–1992), Jay Leno (1992–2009 and 2010–2014), Conan O'Brien (2009–2010), and Jimmy Fallon (2014–present). Besides the main hosts, a number of regular "guest hosts" have been used, notably Ernie Kovacs, who hosted two nights per week during 1956–1957, and a number of guests used by Carson, who curtailed his own hosting duties back to three nights per week by the 1980s. Among Carson's regular guest hosts were Joey Bishop, David Letterman, Joan Rivers, David Brenner, and Jay Leno, although the practice has been mostly abandoned since hosts currently prefer reruns to showcasing potential rivals. Fallon has used guest hosts rarely, co-hosting the May 24, 2021 broadcast with Dave Grohl, Jimmy Kimmel hosting the April 1, 2022 broadcast (with Fallon swapping duties to guest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propaganda
Propaganda is communication that is primarily used to influence or persuade an audience to further an agenda, which may not be objective and may be selectively presenting facts to encourage a particular synthesis or perception, or using loaded language to produce an emotional rather than a rational response to the information that is being presented. Propaganda can be found in news and journalism, government, advertising, entertainment, education, and activism and is often associated with material which is prepared by governments as part of war efforts, political campaigns, health campaigns, revolutionaries, big businesses, ultra-religious organizations, the media, and certain individuals such as soapboxers. In the 20th century, the English term ''propaganda'' was often associated with a manipulative approach, but historically, propaganda has been a neutral descriptive term of any material that promotes certain opinions or ideologies. Equivalent non-English terms have also la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neal Koblitz
Neal I. Koblitz (born December 24, 1948) is a Professor of Mathematics at the University of Washington. He is also an adjunct professor with the Centre for Applied Cryptographic Research at the University of Waterloo. He is the creator of hyperelliptic curve cryptography and the independent co-creator of elliptic curve cryptography. Biography Koblitz received his undergraduate degree from Harvard University in 1969. While at Harvard, he was a Putnam Fellow in 1968. He received his Ph.D. from Princeton University in 1974 under the direction of Nick Katz. From 1975 to 1979 he was an instructor at Harvard University. In 1979 he began working at the University of Washington. Koblitz's 1981 article "Mathematics as Propaganda" criticized the misuse of mathematics in the social sciences and helped motivate Serge Lang's successful challenge to the nomination of political scientist Samuel P. Huntington to the National Academy of Sciences. In ''The Mathematical Intelligencer'', Koblit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reason (magazine)
''Reason'' is an American libertarian monthly magazine published by the Reason Foundation. The magazine has a circulation of around 50,000 and was named one of the 50 best magazines in 2003 and 2004 by the ''Chicago Tribune''. History ''Reason'' was founded in 1968 by Lanny Friedlander (1947–2011), a student at Boston University, as a more-or-less monthly mimeographed publication. In 1970 it was purchased by Robert W. Poole Jr., Manuel S. Klausner, and Tibor R. Machan, who set it on a more regular publishing schedule. As the monthly print magazine of "free minds and free markets", it covers politics, culture, and ideas with a mix of news, analysis, commentary, and reviews. During the 1970s and 80s, the magazine's contributors included Milton Friedman, Murray Rothbard, Thomas Szasz, and Thomas Sowell. In 1978, Poole, Klausner, and Machan created the associated Reason Foundation, in order to expand the magazine's ideas into policy research. Marty Zupan joined ''Reason'' in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ronald Bailey
Ronald Bailey (born November 23, 1953) is an American Libertarianism in the United States, libertarian Science journalism, science writer. He has written or edited several books on economics, ecology, and biotechnology. Personal life Bailey was born in San Antonio, Texas, and raised in Washington County, Virginia. He lives in Washington, D.C., and Charlottesville, Virginia, with his wife Pamela. Career Bailey attended the University of Virginia, where he earned a B.A. in philosophy and economics in 1976. He worked briefly as an economist for the Federal Energy Regulatory Commission. From 1987 to 1990 he contributed articles to Forbes. Bailey worked as a reporter for ''The Tico Times'' in San José, Costa Rica during 1990 and 1991. His articles and reviews have appeared in national newspapers and magazines and have been selected for inclusion in The Best American Science Writing anthology series. Bailey was the founding producer of the Public Broadcasting Service, PBS series T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidney Dillon Ripley
Sidney Dillon Ripley II (September 20, 1913 – March 12, 2001) was an American ornithologist and wildlife conservationist. He served as secretary of the Smithsonian Institution for 20 years, from 1964 to 1984, leading the institution through its period of greatest growth and expansion. For his leadership at the Smithsonian, he was awarded the Presidential Medal of Freedom by Ronald Reagan in 1985. Biography Early life Ripley was born in New York City, after a brother, Louis, was born in 1906 in Litchfield, Connecticut. His mother was Constance Baillie Rose of Scottish descent while his father was Louis Arthur Dillon Ripley, a wealthy real estate agent who drove around in an 1898 Renault Voiturette. Both his paternal grandparents, Julia and Josiah Dwight Ripley, died before he was born but he connected to them was through Cora Dillon Wyckoff. Great Aunt Cora and her husband, Dr. Peter Wyckoff, often hosted young Ripley at their Park Avenue apartment. Cora's and Julia's f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
René Dubos
René Jules Dubos (February 20, 1901 – February 20, 1982) was a French-American microbiologist, experimental pathologist, environmentalist, humanist, and winner of the Pulitzer Prize for General Non-Fiction for his book ''So Human An Animal''. He is credited for having made famous the environmental maxim: "Think globally, act locally." Aside from a period from 1942 to 1944 when he was George Fabyan Professor of Comparative Pathology and professor of tropical medicine at Harvard Medical School and Harvard School of Public Health, his scientific career was spent entirely at The Rockefeller Institute for Medical Research, later renamed The Rockefeller University. Early life and education Dubos was born in Saint-Brice-sous-Forêt, France, on February 20, 1901, and grew up in Hénonville, another small Île-de-France farming village north of Paris. His parents operated butcher shops in each of these villages. He attended high school and the National Institute of Agronomy in Pari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lester R
Lester is an ancient Anglo-Saxon surname and given name. Notable people and characters with the name include: People Given name * Lester Bangs (1948–1982), American music critic * Lester W. Bentley (1908–1972), American artist from Wisconsin * Lester Bird (1938–2021), second prime minister of Antigua and Barbuda (1994–2004) * Lester Cotton (born 1996), American football player * Lester del Rey (1915–1993), American science fiction author and editor * Lester Flatt (1914–1979), American bluegrass musician * Lester Gillis (1908–1934), better known as Baby Face Nelson, American gangster * Lester Holt (born 1959), American television journalist * Lester Charles King (1907–1989), English geomorphologist * Lester Lanin (1907–2004), American jazz and pop music bandleader * Lester Lockett (1912–2005), American Negro League baseball player * Lester Maddox (1915–2003), governor and lieutenant governor of the U.S. state of Georgia * Lester Patrick (1883–1960), Can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denis Hayes
Denis Allen Hayes (born August 29, 1944) is an environmental advocate and an advocate for solar power. He rose to prominence in 1970 as the coordinator for the first Earth Day. Hayes founded the Earth Day Network and expanded it to more than 180 nations. During the Carter administration, Hayes became head of the Solar Energy Research Institute (now known as the National Renewable Energy Laboratory), but left this position when the Reagan administration cut funding for the program. Since 1992, Hayes has been president of the Bullitt Foundation in Washington and continues to be a leader in environmental and energy policy. In 2015, he was a fellow at the Robert Bosch Academy to write a book on solar energy. archived from thoriginal [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Wald
George Wald (November 18, 1906 – April 12, 1997) was an American scientist who studied pigments in the retina. He won a share of the 1967 Nobel Prize in Physiology or Medicine with Haldan Keffer Hartline and Ragnar Granit. In 1970, Wald predicted that “civilization will end within 15 or 30 years unless immediate action is taken against problems facing mankind.” Research As a postdoctoral researcher, Wald discovered that vitamin A was a component of the retina. His further experiments showed that when the pigment rhodopsin was exposed to light, it yielded the protein opsin and a compound containing vitamin A. This suggested that vitamin A was essential in retinal function. In the 1950s, Wald and his colleagues used chemical methods to extract pigments from the retina. Then, using a spectrophotometer, they were able to measure the light absorbance of the pigments. Since the absorbance of light by retina pigments corresponds to the wavelengths that best activate pho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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