Scientists found the most intense heat wave ever recorded — in Antarctica

,” said Edward Blanchard-Wrigglesworth, author of the study. “We found that temperature anomaly, the 39-degree temperature anomaly, that’s the largest anywhere ever measured anywhere in the world.”

The seeds for the heat wave, Blanchard-Wrigglesworth said, began with unusual winds. Typically, winds blow from west to east around Antarctica and help isolate the continent from warmer regions farther north, allowing it to stay cold.

“That’s what we saw for the Antarctic heat wave,” Blanchard-Wrigglesworth said. “These events sort of erode that inversion, you get rid of it.”Meteorologist Jonathan Wille, who was not involved in the study, said he’s not surprised that this Antarctic heat wave registered as the largest observed temperature anomaly anywhere. After all, the Antarctic Plateau has some of the highest temperature variability in the world.

“A 2C boost for a heatwave that was 39C above average means that this heat wave would have been record shattering without the climate change signal,” Wille, a researcher at ETH Zurich, wrote in an email.But climate change could have had another effect the models didn’t test, such as the effect on the anomalous winds that brought the warm air mass to the continent in the first place.

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