The Arctic also saw the sixth lowest minimum of sea ice on record.
And while sea ice minimum and maximum extents are key measurements in the polar environment, the thickness of that sea ice is another major concern.
"Thickness at the end of the growth season largely determines the survivability of sea ice. New research is using satellites like NASA’s ICESat-2 to monitor how thick the ice is year-round," said Nathan Kurtz, lab chief of NASA’s Cryospheric Sciences Laboratory at the agency’s Goddard Space Flight Center.
"At NASA we’re interested in taking cutting-edge measurements, but we’re also trying to connect them to the historical record to better understand what’s driving some of these changes that we’re seeing," said Kurtz.
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