Denver Channel: Climate change is forever altering forests in the Rocky Mountain region with wildfires, insects and unexplained tree die-off, according to a new report. Published Wednesday by the Union of Concerned Scientists and the Rocky Mountain Climate Organization, the report is titled "Rocky Mountain Forests at Risk." It finds that climate changes are driving the "triple assault" that is threatening the landscapes of Rocky Mountain, Glacier and Yellowstone National Parks. Temperatures in the region have...