Less Snow
One of the most certain effects of climate change will be less snow in our mountains.
The world’s scientists report with “high confidence” that climate change will reduce snowpacks in the Rocky Mountains.
“Warming, and changes in the form, timing and amount of precipitation, will very likely lead to earlier melting and significant reductions in snowpack in the western mountains by the middle of the 20th century (high confidence).”
“Intergovernmental Panel on Climate Change,Climate Change 2007: Impacts, Adaptation, and Vulnerability (2007)

"The importance of snowpack to life in and around the Rocky Mountains cannot be overemphasized."
U.S. Global Change Research Program (2003)