Global Warming in Antartica

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  • Topic: Antarctica, Ocean, Water
  • Pages : 3 (807 words )
  • Download(s) : 512
  • Published : July 12, 2011
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Antarctica global warming has become a burning issue of the present time. Global warming in Antarctica will pose a serious threat to the rise in water level. Hence, Antarctica global warming has become a great concern for the scientists and researchers. As most of this continent is covered by ice, the impact of global warming is more acutely felt here. With the increase in the number of automobiles, air pollution has been on the increase in the last 20 years. This is one of the major causes of global warming. Moreover, the chimneys of the factories all over the world emit various types of gases, which pollute the air to a great extent. If the air continues to get polluted at such a fast rate, it will definitely cause a rise in the general temperature throughout the world. This rise in temperature is resulting in the gradual melting of the vast thick ice-sheets in Antarctica.

Antarctica holds 90% of the world's ice and 70% of its freshwater. Its average temperature has increased nearly 5 degrees (F) in the last half century. Floating ice shelves account for about 11% of the area of the continent, and while the loss of these ice shelves does not increase sea level, they effectively act as corks to hold back glaciers. Significant melting of Antarctica's glaciers -- which have been moving more rapidly toward the sea -- could increase sea levels as much as 20 feet worldwide. The Antarctic Peninsula, which juts toward South America and is one of only two masses of land on the continent outside the Antarctic Circle, has been warming markedly. Vast portions of its Wilkins Ice Shelf disintegrated in 2008 and 2009 after 1,500 years of stability.

Effects of Global Warming

If all the ice in Antarctica melted, it would raise the level of the world's oceans by over 200 feet (60 meters). The possibility of this happening in the near term is not seriously considered by scientists, for the Antarctic icecap is currently believed to be in equilibrium. However,...
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