The "greenhouse effect” global warming of the earth is here, but the current drought and heat wave over much of the United States can’t be blamed on it, a scientist told a Senate panel Thursday.Carbon dioxide concentrations in the atmosphere are 10 percent above 1958 levels and 25 percent above concentrations believed to prevail in 1790 when the industrial revolution brought the first widespread burning of coal in the industry to fire the new steam engines. (Photo: Pixabay) On June 23, 1988, a top NASA scientist told Congress and the world that global warming had arrived., concerned about his state’s coal industry, asked physical chemist William R. 

NASA scientist James Hansen predicted that 1988 would be the world’s hottest year on record, thanks to the burning of fossil fuels that released heat-trapping gases.Gases emitted by modern civilization — notably carbon dioxide from the burning of fossil fuels but also methane, nitrous oxide and the chlorofluorocarbon gases that major nations agreed last year to reduce — trap heat from the earth’s surface that normally would be radiated out to space just as the glass over a greenhouse traps the sun’s heat inside. China Hex Nuts Factory From China Suppliers Climate change.The Associated Press is republishing a version of its report on the testimony to mark the 30th anniversary. Woodwell, director of the Woods Hole Research Center in Massachusetts... "It is well within reach, no question about that. has the potential for turning the world into a form of chaos not greatly different from that produced by global war,” he said. Dallas would see 78 such days instead of 19.”(Source).Tropical temperatures wouldn’t change much at all, but in Canada, the change could be two or three times as large as the average."If we could magically reduce (annual) emissions (of carbon) by about 3 billion tons, we could stabilize the content of the atmosphere,” said George M.A major report from the World Meteorological Organization and the United Nations Environment Program earlier this month concluded that without a major effort to fight warming, global temperatures could increase by 0.Extreme temperatures would occur more often. Hansen, a climatologist at the National Aeronautics and Space Administration’s Goddard Institute for Space Studies in New York City. Moomaw of the World Resources Institute, a Washington-based policy research organisation if technology could not reduce the harmful emissions.Many studies have said global warming could bring drastic changes in weather, including more rainfall at low and high latitudes and more drought in between, with drastic shifts in possible crop patterns.However, similar heat waves and droughts can be expected much more often as a result of future warming, said James E.Though there has been much speculation by scientists around the world that the warming resulted from the greenhouse effect, Hansen’s statement is the most definite yet. 

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