Rapid Arctic warming and Pacific and Atlantic oceans

An atmospheric model suggests that the combined effect of internally generated Pacific and Atlantic interdecadal variability, characterized by sea surface temperature warming in the tropical Pacific and North Atlantic, may explain the rapid increase in Arctic surface air temperature during the early 20th century, despite the presence of weaker greenhouse effects than at present, highlighting the influence of regional sea surface temperature changes on Arctic climate. - Read at PNAS

Article #16-15880: “Early 20th-century Arctic warming intensified by Pacific and Atlantic multidecadal variability,” by Hiroki Tokinaga, Shang-Ping Xie, and Hitoshi Mukougawa.