Rapid Decline in Mountain Snowpack Bad News for Western U.S. Rivers

Snowpack in the northern Rocky Mountains has shrunk at an unusually rapid pace during the past 30 years, according to a new study. The decline is “almost unprecedented” over the past 800 years, say researchers who used tree rings to reconstruct a centuries-long record of snowpack throughout the entire Rocky Mountain range

The rest is here:
Rapid Decline in Mountain Snowpack Bad News for Western U.S. Rivers