Inquistr: In as little as 20 years, forests in the U.S. may look very different than they do today. A new study is warning that climate change and drought will likely threaten all of the countrys trees. The effects on the American West have already proven disastrous, but a new study that compiles hundreds of smaller studies on the health of U.S. forests and rangelands has suggested that the problem will spread east, the Christian Science Monitor reported. Science is currently scrambling to understand the...