The demand for water from the Colorado River is of paramount importance out West and the focus of some big battles. It's been especially critical for farming and agriculture. In California's Imperial Valley, there are growing questions over the use of that resource and whether bigger changes are needed. Science correspondent Miles O'Brien reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy