Recent observations of the polar regions in 2006 have prompted alarm from experts that ice melting rates could be exceeding even IPCC projections [...] The extent of Arctic sea ice has already shrunk by about 2.7% per decade since 1978, with the summer minimum declining by about 7.4% per decade according to the report.
Seeded on Tue Feb 27, 2007 8:42 AM EST
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Recent observations of the polar regions in 2006 have prompted alarm from experts that ice melting rates could be exceeding even IPCC projections.
The latest measurements show that Arctic sea-ice masses last year nearly matched lows recorded in 2005 and that for the first time re-freezing delayed until late autumn.
Unexpected breakage and movement of large pieces of Arctic coastal ice have also been reported as well as significant and surprising warming of ocean surface waters entering the Arctic from the North Atlantic.
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