Essay on Global Warming And Climate Change

1185 Words Nov 4th, 2015 5 Pages
Global warming is a rise in temperature in the troposphere that may lead to climate change. Global climate change is a much broader term that discusses changes in any part of the climate on Earth. These changes could occur in temperature, precipitation, or storm intensity. A change in global climate could be a warning or a cooling of the temperature. Often associated with global warming is the Greenhouse effect. Greenhouse gases in the atmosphere can trap and hold heat from the sun. Temperatures in the troposphere are strongly influenced by snow and ice near the North and South Poles as well as in mountain glaciers. Global air circulation causes the temperature to increase more at the poles as excess from the equator is transferred towards them. Scientists take measures of glaciers and winds which now show floating ice in the seas around the North Pole and a thinning ice sheet in Greenland. In addition, over the past 60 years, the average temperature of the sea surface has increased by 0.31 C. Although this doesn’t sound like a lot, rising temperatures by even the smallest degree can be deadly. In the documentary, the increase of one degree causes Africa’s three highest peaks to lose half their glacial area in comparison to 1987, affecting downstream water supply, wildlife and biodiversity. Another serious, negative consequence of global warming is the melting of the polar ice caps in Greenland and Antarctica. At two degrees, sea level could rise by as much as 20m meters…

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