Statesman Journal: During the past 21 years, I spent my summers living in Crater Lake National Park, Oregons only national park. I noticed winters becoming shorter, warmer and less snowy. Science confirms this. In 1931, rangers first began keeping track of the average annual snowfall at Crater Lake. Since then, the totals have trended downward by decade from an average of 614 inches in the 1930s to about 455 inches last decade. Even more alarming, this last winter, 2012-13, Crater Lake received about 355 inches....