The past two weeks have brought new signs that global warming is not only continuing, but may in some respects be accelerating. Three independent agencies in the United States and Japan made the announcement that 2014 was most likely the warmest year on record since at least 1880, and very likely for several millennia before that.
The only major land mass that featured relatively cool temperatures for the year — but still warmer than average — was parts of the U.S. and Canada.
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