Study Shows that Dirty Snow Reduces Colorado River Runoff
Human-produced dust, mostly from grazing and farming, settles on mountain snowpacks in the Upper Colorado River basin and significantly reduces runoff. Eliminating this "dirty snow" phenomenon, which impacts national parks as well as the regional economy, would require a huge reduction in soil-disturbing activities.
- By Bob Janiskee - September 29th, 2010 7:05am