120901 Arctic summer sea ice loss is 50% higher

            Robin McKie the British Science and Technology editor for the Observer has published an article in The Guardian titled ‘Rate of Arctic summer sea ice loss is 50% higher than predicted’ discussing the new satellite images that show polar ice coverage dwindling in extent and thickness. In the article McKie states “Sea ice in the Arctic is disappearing at a far greater rate than previously expected, according to data from the first purpose-built satellite launched to study the thickness of the Earth's polar caps. Preliminary results from the European Space Agency's CryoSat-2 probe indicate that 900 cubic kilometres of summer sea ice has disappeared from the Arctic ocean over the past year. This rate of loss is 50% higher than most scenarios outlined by polar scientists and suggests that global warming, triggered by rising greenhouse gas emissions, is beginning to have a major impact on the region. In a few years the Arctic ocean could be free of ice in summer, triggering a rush to exploit its fish stocks, oil, minerals and sea routes. Using instruments on earlier satellites, scientists could see that the area covered by summer sea ice in the Arctic has been dwindling rapidly. But the new measurements indicate that this ice has been thinning dramatically at the same time. For example, in regions north of Canada and Greenland, where ice thickness regularly stayed at around five to six metres in summer a decade ago, levels have dropped to one to three metres.” Inspired by The Guardian ow.ly/d7iCI image source Twitter ow.ly/d7izV
   

Taken on: August 26, 2012

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Sets appears in: • 1209 - September 2012

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