Snow is one of the most contradictory cues we have for understanding climate change.
As in many recent winters, the lack of snowfall in December seemed to preview our global warming future, with peaks from Oregon to New Hampshire more brown than white and the American Southwest facing a severe snow drought.
On the other hand, January has brought some heavy snow to New England, and record blizzards in early 2023 buried California mountain communities, replenished parched reservoirs, and dropped 11 feet of snow on northern Arizona, defying our conceptions of life on a warming planet.
Now, a new Dartmouth study authored in part by PHD student Alex Gottlieb cuts through the uncertainty in these observations and provides evidence that seasonal snowpacks throughout most of the Northern Hemisphere have indeed shrunk significantly over the past 40 years due to human-driven climate change.
Alex and I talk about what those changes mean to all of us.
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