It's Now Official: Arctic Sea Ice Sets a New Winter Low

In early March, I wrote that Arctic sea ice appeared to be heading toward a new record: the lowest maximum winter extent for Arctic sea ice in the satellite era.

Yesterday, the National Snow and Ice Data Center made that new, unsettling record official:
On February 25, 2015, Arctic sea ice extent appeared to have reached its annual maximum extent, marking the beginning of the sea ice melt season. This year’s maximum extent not only occurred early; it is also t

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