image: Ancient Subalpine Larch (Larix lyallii) growing near Gray's Pass, British Columbia. 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: Greg Pederson, 2006, © <i>Science</i>/AAAS