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Effect of Global Warming on Third World Nations

5 degrees C during this period, but the rate of change has been uneven (Monastersky, February, 1994). Temperatures rose quickly in the early third of this century, then leveled off from 1940 to 1975. They climbed steeply in the 1980s. Some climate experts believe that rising concentrations of carbon dioxide and other greenhouse gases are responsible for some global warming, but cannot explain the slow down from 1940 to 1975. It may have been due to a combination of two human factors: greenhouse warming and cooling from sulfur pollution, according to this study. Solar or random fluctuations, and oceanic changes shuffling heat from the tropics to the Arctic may be the cause of 70-year oscillations seen in global temperatures. In 1994, a meeting of hundreds of the world=s scientists reached a consensus that carbon dioxide and other greenhouse gas pollutants represent the most important factor currently altering the climate, and drown out other effects which cause global cooling (Monastersky, September, 1994). The recent study by the Intergovernmental Panel on Climate Change (IPCC) concluded that solar variations and sulfur pollution were too weak to counter the warming influence of carbon dioxide, methane, chlorofluorocarbons (CFCs), nitrous oxide, and other heat-trapping gases. Although sulfur droplets and smoke from fires reflect sunlight back toward space, such pollutants do not exert a uniform cooling effect because of their spotty distribut

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Effect of Global Warming on Third World Nations. (1969, December 31). In LotsofEssays.com. Retrieved 12:52, October 24, 2014, from http://www.collegetermpapers.com/viewpaper/7572.html
 
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