Polar ice sheets are synchronized swimmers | Science News

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Polar ice sheets are synchronized swimmers

Glaciers in the Northern and Southern Hemispheres advance and retreat together

2:32pm, December 1, 2011

When the last ice age was coming to a close about 19,000 years ago, the ice sheets that cover Antarctica began to shrink to their current sizes at about the same time as those in the Arctic, a new study finds.

That implies that the East Antarctic Ice Sheet, long thought to be relatively stable compared with the western  side of the ice-clad continent, “is in fact, not so stable,” says geologist Michael Weber of the University of Cologne, Germany. And if the much larger East Antarctic Ice Sheet were to break off into the Weddell Sea, the resulting sea level rise would be tremendous, says Weber, who, with his colleagues, repo

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