Unprecedented Arctic Warming: Average Summer Temperatures in Last 100 Years May Be Warmest in 120,000 Years

http://www.sciencedaily.com/releases/2013/10/131024102243.htm

Oct. 24, 2013 — The heat is on, at least in the Arctic. Average summer temperatures in the Eastern Canadian Arctic during the last 100 years are higher now than during any century in the past 44,000 years and perhaps as long ago as 120,000 years, says a new University of Colorado Boulder study.

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"The key piece here is just how unprecedented the warming of Arctic Canada is," said Miller, also a fellow at CU-Boulder's Institute of Arctic and Alpine Research. "This study really says the warming we are seeing is outside any kind of known natural variability, and it has to be due to increased greenhouse gases in the atmosphere."

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