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While models and measurements suggest that global warming is increasing the snowfall at the poles, it is hardly enough to counteract the melting that is taking place. While warmer air means more moisture transported to the poles to fall as snow, that new snow also pushes the snow and ice below it into the sea, and increases the melt. The Oregonian provides coverage: http://www.oregonlive.com/environment/index.ssf/2015/03/climate_change_will_cause_more.html#incart_river

At the same time, scientists are cautioning that Antarctic ice may well be melting more extensively than has been thought. It is thought that the accelerating melt observed in Western Antarctica may be mirrored in Eastern Antarctica, to boot. The ramifications for sea level rise are quite troubling. Al Jazeera America reports: http://america.aljazeera.com/articles/2015/3/16/scientists-warn-antarctic-melting-is-more-extensive-than-previously-thought.html

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