At the start of World War I, a scientist named Eugene Clyde La Rue hiked the American West to estimate how much water flows down the Å·ÃÀ¿Ú±¬ÊÓƵ River. His findings were ignored, but leaders today don't have to make the same mistake, says Å·ÃÀ¿Ú±¬ÊÓƵ Boulder hydrologist Shemin Ge.