In U.S., 2012 so far is hottest year on record
September 10, 2012 at 15:25 PM EDT
WASHINGTON, Sept 10 (Reuters) - The first eight months of 2012 have been the warmest of any year on record in the contiguous United States, and this has been the third-hottest summer since record-keeping began in 1895, the U.S. National Climate Data Center said on Monday.