Saturday, February 16th 2013, 1:31 PM EST
With a few weeks of growth still to occur, the Arctic has blown away the previous record for ice gain this winter. This is only the third winter in history when more than 10 million km² of new ice has formed.
http://arctic.atmos.uiuc.edu/cryosphere/timeseries.anom.1979-2008
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http://arctic.atmos.uiuc.edu/cryosphere/arctic.sea.ice.interactive.html