Denver Post: Some of the most dramatic – and negative – effects from climate change will take place in the American West, according to a new federal study. While the East will become wetter and Midwest grain crops may benefit from longer growing seasons, the West will be drier and rangeland livestock production could decline because of stress from hotter summers. The study by the U.S. Department of Agriculture – a survey and synthesis of existing research – paints a picture of sweeping changes in …