Former Vice President Al Gore

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Greenland faces similar problems. "They're worried because it's the same thing they saw in Antarctica on top of this ice shelf that broke up," Gore says. "They now know that these pools drill down through the ice like termites."

The difference between Greenland and Antarctica is that Greenland is not floating ice. Below the ice is bedrock. As the ice melts, it creates a destabilizing film between the ice and the rock. This destabilization, similar to a hydroplaning car, has resulted in a dramatic increase in "glacial earthquakes" with readings of up to 5.1 on the Richter scale in Greenland.

These earthquakes have resulted in a tremendous amount of ice falling off Greenland into the sea. "There's an amount of fresh water melting off of Greenland now that's bigger than the whole annual flow of the Colorado River times 10," Gore says.
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FROM: Global Warming 101 with Al Gore
Published on December 05, 2006

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