Bericht des Arctic Monitoring & Assessment Programme, 7.5.2021 (engl. Originalfassung)
The physical drivers of Arctic change continue to change rapidly. Key indicators such as temperature, precipitation, snow cover, sea ice thickness and extent, and permafrost thaw show rapid and widespread changes underway in the Arctic. An important update is that the increase in Arctic annual mean surface temperature (land and ocean) between 1971 and 2019 was three times higher than the increase in the global average during the same period. This is higher than reported in previous AMAP assessments.
Extreme events in the Arctic are changing in frequency and intensity The Arctic is experiencing an increase in extreme events. New findings include recent increases in the frequency and/or intensity of rapid sea ice loss events, melt events on the Greenland ice sheet, and wildfires. There has been an increase in extreme high temperatures and a decline in extreme cold events. Cold spells lasting more than 15 days have almost completely disappeared from the Arctic since 2000.
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