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Feedback Accelerates Arctic Ice Melt – Canada, Alaska Most Pronounced

Scientists at NASA and the National Snow and Ice Data Center published research last week in the Journal of Geophysical Research based on satellite microwave data of seasonal Arctic ice thaw from 1970 to 2009. The study indicates the seasonal Arctic sea ice melt season is now about 20 days longer than it was 30 years ago. The growing season…

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U.S. Scientists Suggest New Arctic Study May Oversate Sea Ice Melting

Cambridge professor Peter Wadhams made headlines yesterday when he said that data gathered from British explorer Pen Hadlow’s Arctic trek, called the Catlin Ice Survey,  shows that Arctic summers will be entirely ice-free by 2020. Today, many experts fear the Wadhams may be overstating just how fast the Arctic will be open ocean in summer. Walt Meier, senior scientist at…

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