December 13, 2023 — This past summer was the hottest on record in the Arctic, which is warming nearly four times faster than any location on the planet. And the symptoms of that warming laid bare a rapidly changing region that in many ways barely resembles what it once was.
Key data points show that the Arctic continues to become less icy, wetter and greener, according to a report card released by the National Oceanic and Atmospheric Administration on Tuesday. The trends, all linked to a warming climate, have been observed for decades.
And they played out in dramatic ways this summer: Out-of-control wildfires forced entire communities to evacuate. A river surged from its banks and into homes because of dramatic glacial thinning. Near the peak of Greenland’s ice sheet, more than 10,000 feet above sea level, temperatures soared above freezing for only the fifth time on record.
Even amid rapid change, variability of weather patterns meant a few parts of the Arctic still exhibited some of the frigid norms of the past. For example, sea ice persisted for much of the summer in the East Siberian Sea, and a colder-than-normal spring slowed the melt of sea ice and snow cover in Alaska.
But the broader picture makes clear that the Arctic continues to change, with the past 17 years accounting for the 17 smallest annual minimum sea ice covers in the 45-year satellite record. This year, sea ice cover ranked sixth smallest, amid summer temperatures that were the Arctic’s hottest on record and a year that ranks sixth warmest.