Average temperature rise on the earth since 1900 was found to be about 1°C. Some areas of the United States have shown an increase of 2 °C; the last three 5 year periods have been the warmest. A recent NASA report stated that five warmest years of the earth during the last century occurred in the last eight years; 2005 was the warmest followed by 1998, 2002, 2003 & 2004 in severity. NRDC reports that out of the 20 hottest years of the earth, 19 have been since 1980.
Sea levels are rising, partly due to thermal expansion caused by higher temperature of the ocean water and partly due to melting ice. Sea level is rising at three times the historical rate. It has risen by 10 to 20 centimeters. In the past century and unless the trend reverses, is estimated to rise by 45 to 90 centimeters by 2100. This increase of about one meter in sea level, it is feared, will trigger one of the worst disasters for mankind globally.
It was feared that as consequences of global warming, glaciers and snowcaps will melt. NRDC has reported that Glacier National Park is receding fast; frozen lakes are seen to be thawing earlier. NASA has reported that Arctic ice thickness has decreased by 40 % since 1960 and Polar ice cap is melting at about 10 % per decade.
Hurricane draws its energy from the warm ocean waters and it was feared that frequency as well as severity of hurricanes and storms will increase. NRDC reports that Category 4 & 5 storms have greatly increased over the last 35 years.
Sea levels are rising, partly due to thermal expansion caused by higher temperature of the ocean water and partly due to melting ice. Sea level is rising at three times the historical rate. It has risen by 10 to 20 centimeters. In the past century and unless the trend reverses, is estimated to rise by 45 to 90 centimeters by 2100. This increase of about one meter in sea level, it is feared, will trigger one of the worst disasters for mankind globally.
It was feared that as consequences of global warming, glaciers and snowcaps will melt. NRDC has reported that Glacier National Park is receding fast; frozen lakes are seen to be thawing earlier. NASA has reported that Arctic ice thickness has decreased by 40 % since 1960 and Polar ice cap is melting at about 10 % per decade.
Hurricane draws its energy from the warm ocean waters and it was feared that frequency as well as severity of hurricanes and storms will increase. NRDC reports that Category 4 & 5 storms have greatly increased over the last 35 years.
abstracted from: http://globalwarmingpages.com/Consequences-of-Global-Warming.html
0 comments:
Post a Comment