2015 Was Hottest Year in Historical Record, Scientists Say

The New York Times: Scientists reported Wednesday that 2015 was the hottest year in the historical record by far, breaking a record set only the year before — a burst of heat that has continued into the new year and is roiling weather patterns all over the world.

In the contiguous United States, the year was the second-warmest on record, punctuated by a December that was both the hottest and the wettest since record-keeping began. One result has been a wave of unusual winter floods coursing down the Mississippi River watershed.

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