My last September-mean Arctic sea ice extent forecast has come in at 4.97 million sq km. Based on https://t.co/ebzQmYu05E, the average extent over the first 8 days of Sept is 5 million sq km, but the ice is still melting! Let's see how things pan out for the rest of the month 👀 pic.twitter.com/m67lWTYYuX

— Will Gregory (@willjgregory_) September 9, 2022