Atlantic cold blob points to weakening ocean circulation (opens in new tab)

A new analysis links the North Atlantic “cold blob,” a region south of Greenland and Iceland that has cooled as global temperatures rise, to a weakening Atlantic Meridional Overturning Circulation, or AMOC. The study used satellite data, reanalysis records and ocean heat content data, including records extending to 1955, to test whether the anomaly stems from reduced ocean heat transport or increased heat loss at the surface. The researchers concluded that reduced heat delivery by deep ocean ...