The cooling is widespread — holding true for 19 of the 20 National Weather Service stations sprinkled from one corner of Alaska to the other, the paper notes. It’s most significant in Western Alaska, whereKing Salmon on the Alaska Peninsula saw temperatures drop most sharply, a significant 4.5 degrees for the decade, the report says.
The new nippiness began with a vengeance in 2005, after more than a century that saw temperatures generally veer warmer in Alaska, the report says. With lots of ice to lose, the state had heated up about twice as fast as the rest of the planet, in line with rising global greenhouse gas emissions, note the Alaska Climate Center researchers, Gerd Wendler, L. Chen and Blake Moore. After a “sudden temperature increase” in Alaska starting in 1977, the warmest decade on record occurred in the 1980s, followed by another jump in the 1990s, they note. The third warmest decade was the 1920s, by the way.