Arctic and Antarctic end-of-season report – October 2020
era, according to HadISST1.2, with linear trend indicated. Figure 2. Arctic sea ice extent in September 2020, compared to the record low year of 2012 and the 1981-2010 average, with regions named in the text labelled. Data are from HadISST1.2. Melt season review Summer 2020 was exceptionally warm