Pacific Northwest snowpack endangered by increasing heatwaves. When the researchers looked back at temperature records spanning from 1940 to 2021, they saw that these springtime heatwaves have doubled in frequency, intensity or both since the mid-1990s.

Pacific Northwest snowpack endangered by increasing heatwaves. When the researchers looked back at temperature records spanning from 1940 to 2021, they saw that these springtime heatwaves have doubled in frequency, intensity or both since the mid-1990s.

by Wagamaga