In case you mised it, NASA’s Goddard Institute for Space Studies announced on May 17 that the first quarter four months of 2010 was were the warmest such period globally in 131 years. The upper left map above shows how different part of the world fared. Warming was most significant in the far north, with some regions experiencing temperatures more than 5 degrees C warmer than the long-term mean.
So perhaps it should be no surprise that the extent of Arctic sea ice is now running significantly below the long-term mean, as is evidence from this graph from the National Snow and Ice Data Center:


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Nitpick: Four months isn’t a quarter.
I stand corrected. Thanks Steve!
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any explaination why the DMI artic (N of 80deg) temperatures are running below average, where much of the GISS is showing +4 -> +6?
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