The rapid warming of the Arctic, a definitive sign of climate change, is occurring even faster than previously described. A new report by the Finnish Meteorological Institute concludes that the Arctic has warmed at about four times the global average rate over the last 43 years. Specifically, Arctic Circle — the area located above 66.5 degrees latitude — has warmed by more than 5 degrees Fahrenheit since 1979.
The Scientific American also reports that a separate group of scientists presented research at the annual meeting of the American Geophysical Union last December with similar findings. And just in June, another study by a different research team also cited a four-times Arctic warming figure (Climatewire, July 11).