Study: Global warming is shrinking river vital to 40M people

DENVER | Global warming is already shrinking the Colorado River, the most important waterway in the American Southwest, and it could reduce the flow by more than a third by the end of the century, two scientists say.
The river’s volume has dropped more than 19 percent during a drought gripping the region since 2000, and a shortage of rain and snow can account for only about two-thirds of that decline, according to hydrology researchers Brad Udall of Colorado State University and Jonat