Maximum sea ice extent on 25 February was 15 days earlier than average and the lowest value on record (1979-present). Minimum ice extent in September was the 4th lowest on record. Sea ice continues to be younger and thinner: in February and March 2015 there was twice as much first-year ice as there was 30 years ago.
Changes in sea ice alone are having profound effects on the marine ecosystem (fishes, walruses, primary production) andsea surface temperatures..."Arctic region
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