Associated Press: A new study suggests warming temperatures predicted over the next century could boost tree growth on Northwest forests, but less so at lower elevations where most of the timber is and temperatures are already warm. Researchers from Oregon State University and the U.S. Forest Service calculated an increase in forest growth rates in Oregon and Washington of between 2 percent and 12 percent by the end of the century, when climate models predict temperatures to be between 0.9 degrees and …