We’re in danger of falling off a ‘snow loss cliff.’ Here’s what that means.

Crossing a key temperature threshold could put more than 2 billion people at risk of losing snow crucial for water supply.

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new findings reveal that areas of the United States and Europe are nearing a tipping point where they could face a disastrous loss of snow for decades to come.

“Once you pass this threshold, which we refer to as the snow loss cliff ... with even modest amounts of warming you can get these really accelerating losses,” Gottlieb said.

Additional coverage: New York Times Bloomberg