Located just a few hours’ drive from the Canadian border, Missoula, Mont. is not known for sweltering temperatures. And yet heat waves are becoming more common in the mountainous region due to climate change, and researchers are concerned that a catastrophic heat event could soon shock the 120,000 or so people who call Missoula County home. Recent history reveals the cost of being unprepared for extreme heat; in 2021, the Pacific Northwest was caught off guard by the strongest heat wave the region had seen in a thousand years, resulting in more than 1,400 deaths.
“We’ve come to understand that heat is a major threat to our region,” says
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