Two years in a row with record low minimum ice extents have now been followed by a winter in which sea ice has not returned as it should. Historically, there should be 16.4 million square kilometers of ice there right now. The actual extent is 14.1 million. Scientists are fearful they are looking at a collapse of Antarctica's sea ice which will lead to a dramatic acceleration of the ice sheets glacial flow into the sea and could very possibly lead to the catastrophic collapse of the isostatic WAIS. We would be able to see sea level rise on a photograph of the Statue of Liberty.
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