Thursday, January 24, 2008

Glaciers & Ice Caps


Everyone has heard the news, and I'm sure you've heard this line repeated several times: "The Polar Ice Caps are Melting".
Each year, the sea level rises an inch. The ocean gets warmer every year, too, resulting in more severe hurricanes like what we saw with hurricane Katrina in 2006 in Louisiana. But of course, I'm sure you knew that too. But part of the reason it rises is because the warmer climate is causing the ice to weaken, and therefore chunks of the ice caps break off, and those chunks become icebergs. you drop a rock into a glass of water, the water rises. This is what is happening to the earth. 70% of the earth's water and 90% of its ice comes from Antarctica. If the ice on that land mass were to melt, the sea level would rise 200 ft. But, that is completely unlikely, because parts of that continent has a temperature that never gets above freezing.
Greenland, on the other hand, is experiencing 3 times the melting speed it was 5 years ago. Researchers say that between April 2002 and November 2005 the melting of the surface of Greenland reached 57 cubic miles.

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