West Antarctica Warming Started About 2,000-4,000 Earlier Than Previously Thought

August 14, 2013 5:01 PM

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West Antarctica Warming Started About 2,000-4,000 Earlier Than Previously Thought

The modern meltdown of the Antarctic Ice Sheet mirrors the frozen continent's big thaw after the last ice age ended 20,000 years ago, a new study finds.

New ice core records from West Antarctica show the huge ice sheet started heating up about 20,000 to 22,000 years ago, 2,000 to 4,000 years earlier than previously thought. But in East Antarctica, which was higher in elevation, colder and drier than the West, the continent stayed in its deep-freeze ...

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