image: Mountain hemlock (Tsuga mertensiana) in Garibaldi Provincial Park, BC. This image relates to an article that appeared in the June 9, 2011, issue of Science Express, published by AAAS. The study, by Dr. Gregory T. Pederson of US Geological Survey in Bozeman, Mont., and colleagues was titled, "The Unusual Nature of Recent Snowpack Declines in the North American Cordillera." view more
Credit: Photo: 1997 Jeremy S. Littell, UW Climate Impacts Group