Sea surface temperatures in the subpolar North Atlantic increased by nearly 1°C from 2015 to 2018 according to a new study (Desbruyères et al., 2021). As of 2020, this region is now almost as hot as it was in 2007,  1930, and 1890 (Birkel et al., 2018).

Image Source: Desbruyères et al., 2021

Image Source: Birkel et al., 2018

For an even longer-term perspective, it would appear this region is now colder than just about any other period in the last 7000 years (Orme et al., 2018).

Image Source: Orme et al., 2018

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May 17, 2021