Arctic Tipping Point: Heading to an Ice-Free North Pole

Scientists say this year’s record declines in Arctic sea ice extent and volume are powerful evidence that the giant cap of ice at the top of the planet is on a trajectory to largely disappear in summer within a decade or two, with profound global consequences. READ MORE

 

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This graph, prepared by the University of Washington’s Pan Arctic Ice Ocean Model Assimilation System (PIOMAS) shows the precipitous drop in the volume of summer sea ice in the Arctic Ocean. Since this graph was prepared, PIOMAS estimates that the volume of sea ice in the Arctic has fallen farther, to 3,500 cubic kilometers — a decline of 72 percent compared to the average from 1979 to 2010. (Polar Science Center/Applied Physics Laboratory/University of Washington)

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