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Less sea ice brings more snow

A melting Arctic shifts atmospheric patterns across much of the Northern Hemisphere

4:59pm, February 27, 2012

Global warming may be responsible for the Northern Hemisphere's recent bout of severe winters. As Arctic sea ice melts, it funnels cold air toward the equator and sets the stage for snow, a new study finds.

“When we have a dramatic reduction in sea ice, we end up with more snow,” says climate scientist Jiping Liu of the Georgia Institute of Technology in Atlanta and coauthor of the study, published online February 27 in the Proceedings of the National Academy of Sciences.

Despite rising global temperatures, extreme winters have blasted much of the Northern Hemisphere during the last decade. U

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