Study: Melting Greenland Ice Sheet is Rapidly Slowing the Gulf Stream

The Northern Hemisphere winter of 2014-15 was the warmest on record globally, according to the National Oceanic and Atmospheric Administration. But if you look closely at global temperature maps, it becomes clear that one area of the North Atlantic conspicuously bucked the trend, as it has during many years since 1970. That region was, in fact, the coldest it has been since the dawn of instrument records, at up to 3.6 degrees Fahrenheit colder than average.

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