Greenland Ice Shows Rapid Climate Flips, Study Says
By Wendy Heller, June 20, 2008 @ 02:00 AM (EST)
Source: Nationalgeographic.com
Violent swings in weather patterns occurred after Earth's climate crossed "tipping points" thousands of years ago, a new study argues.
In as little as three years, patterns in the atmosphere have suddenly shifted and flipped into a new state, apparently contributing to rapid warming of the Northern Hemisphere, according to the new analysis of an ice core from northern Greenland.
The study focused on two quick warming periods—14,700 and 11,700 years ago—that together pushed our planet out of the last ice age...
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