Sudden decline in Arctic Sea Ice

Arctic sea ice extent had been doing pretty well this winter tracking last year, but on the 16th of February the extent suddenly dropped by a massive 300,000 square kilometres, and at the moment the extent is second lowest for the 24th of February on record. During late winter the Arctic sea ice is usually putting on a quick dash to the maximum, which usually occurs around the 11th of March. If the value of 14.594 on the 14th of February ends up being the maximum for the 2020-21 season it would make it the earliest maximum in a record that started in 1978. It’s strange that the date of this sudden decline coincides exactly with the return of milder weather to Europe in the last couple of weeks. It looks like the weakening and imminent collapse of the AMOC couldn’t come a moment too soon!

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