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Unusually warm temperatures broke several records in both Antarctica and the Arctic late last week. The Concordia research base in Eastern Antarctica, one of the most remote research facilities in the world, reported temperatures at around -11 degrees Celsius or about 11 degrees Fahrenheit. That’s 70 degrees Fahrenheit higher than usual on the icy continent.
Over at the North Pole, temperatures reached new heights at around the same time. According to tweets from a climate scientist at the Norwegian Meteorological Institute the mercury hit around 3.9 degrees Celsius, or 39 about degrees Fahrenheit. That’s 50 degrees F (30 degrees C) higher than normal, not to mention higher than the point at which ice melts.
Université Grenoble Alpes post doc researcher Jonathan Wille tweeted that, at around this time of the year, temperatures are supposed to be falling in Antarctica, especially after the South Pole’s summer solstice has already passed and days start to become noticeably shorter. “This is [like] a Pacific Northwest 2021 heatwave kind of event,” he tweeted. “Never supposed to happen.”
Researchers told the Associated Press that the temperature spikes can’t always be attributed to the climate crisis—yet. Zachary Labe, a climate scientist at Colorado State University who specializes in studying the Arctic, explained that some factors in both warming events are regular occurrences, while other factors are connected to climate change.
“These plumes of moisture and heat that move into the Arctic and Antarctic…that’s a normal mechanism,” Labe told Earther. “These events were particularly extreme, and they happened at the same time, which could be just by chance, because they’re in completely different hemispheres.”