Freak Winter Cyclone Wreaked Havoc on Arctic Icepack

The height of last winter – from December through February – was the warmest on record, shattering monthly marks for the least Arctic ice seen since satellite observations began in the 1970s. And now a new study in an American Meteorological Society journal shows how those temperatures combined with an unusual storm system to wreak havoc on the Arctic sea ice pack.

As seasons change and Earth’s northern axis tilts away from sun, ocean water freezes into sea ice around the pole. But many r

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