Rollin Garnier, 16, jumps into the Spokane River from a rope swing on Tuesday, June 19, 2012, just off East Upriver Drive in Spokane, Wash. The average yearly temperature in the continental U.S. is nearly 1.6 degrees warmer today than it was 30 years ago, the analysis shows. And in that period, the average yearly temperature has increased by more than one degree in all but one state. Washington.
Section:Photo