USGS Tree Ring Study-Snowpacks Declining

A recent U.S. Geological Survey (USGS) tree ring study found Rocky Mountain snowpacks decreases over the last three decades are more significant than any other long term period in the last 1,000 years. While snowpack in Colorado is abundant this year—two to three times its 30-year average in some regions—"This year's gains are only a small blip on a century-long snowpack decline," the USGS said in announcing its findings. The long-term forecast cites warmer springs, earlier snowmelts and shifting winter storm patterns, all possible byproducts of global warming according to the USGS.