Arctic & Antarctic

Sea ice extent sinks to record lows at both poles

Arctic sea ice appears to have reached on March 7 a record low wintertime maximum extent. This is the lowest maximum in the 38-year satellite record. On the opposite side of the planet, on March 3 sea ice around Antarctica hit its lowest extent ever recorded by satellites at the end of summer in the Southern Hemisphere, a surprising turn of ...

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NSIDC reports record low Arctic sea ice extent

Average Arctic sea ice extent for November set a record low, reflecting unusually high air temperatures, winds from the south, and a warm ocean, NSIDC reports. Since October, Arctic ice extent has been more than two standard deviations lower than the long-term average. At the same time, Antarctic sea ice extent quickly declined in November, also setting a record low for ...

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West Antarctic Ice Sheet breaking apart from the inside out

A new study has found the glacier bounding the West Antarctic Ice Sheet is breaking apart from the inside out. The Pine Island Glacier, one of the glaciers which will probably rapidly retreat, forms an important part of the ice shelf of the West Antarctic Ice Sheet.  Over half of the world’s fresh water reservoir is currently frozen in Antarctica. ...

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Record early start of southern hemisphere NLC season

The southern hemisphere noctilucent clouds (NLC) season has started early this year and tied with 2013 for the earliest southern hemisphere season on record. The 2016/17 southern hemisphere noctilucent clouds season started on November 17 and tied with 2013 for the earliest southern hemisphere NLC season in the CIPS data record, said Cora Randall, a member of the AIM science team at the ...

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