Record Antarctic temperatures spark fears over climate breakdown speed

AI Summary

Temperatures in Antarctica have reached a record high of 15.4C, shattering the previous winter heat record and raising concerns about the speed of climate breakdown. The unusual heatwave has been attributed to strong warm winds from the north and is seen as a sign of long-term climate trends.

Antarctic Heatwave Shatters Records

Temperatures in the Antarctic climbed above 15C this month, shattering the previous winter heat record for the usually frozen region and raising concerns about the speed of climate breakdown.

The Event Details

The new winter peak temperature was logged by the Argentinian Esperanza base on the Trinity peninsula on 6 June amid a protracted heatwave, when the maximum daily temperature exceeded zero degrees for three consecutive weeks. Scientists said the high of 15.4C broke the previous record set at the same station in 1998 by 2C.

The Data Analysis

15.4C: The record high temperature logged at Esperanza base on 6 June
2C: The increase over the previous record set in 1998
20C: The anomaly above normal temperatures for this time of year

The Impact Analysis

Scientists warn that some of the region’s biggest glaciers, such as Thwaites and Pine Island, are approaching or may even have passed a tipping point that could push up global sea levels by four metres. Antarctic ice melt has also been found to slow global ocean circulation.

The Prediction

Cordero said a single winter of heatwaves, no matter how amazing, would not by itself make a huge difference to sea levels, but it signified more alarming long-term trends. “This heatwave happened because of extremely strong westerlies,” he said. “This has been happening with increasing frequency since the 1980s, and that is known to be related to climate change.”