February 15, 2023
Those unusual frozen Februaries in Texas may not be so unusual anymore.
Early winter has been warming across North America, but late winter is another story. Scientists have documented a cooling trend over more than 40 Februaries, marked by dangerous and increasingly common intrusions of Arctic air deep into the United States.
“December has certainly been warming if you look at the U.S.,” Judah Cohen, a climatologist at the Massachusetts Institute of Technology, says in a recent video. But “February, going back to 1979—so quite a few years now—we’re actually seeing in the center of the U.S. a very distinctive cooling trend.”