U.S. scientists have issued an urgent warning that Lake Mead, which supplies water to millions of people in southwestern states, might be dry by 2021.
The warning from researchers Tim Barnett and David Pierce at the Scripps Institution of Oceanography at the University of California-San Diego was prompted by an analysis of current and anticipated water use, as well as human-induced climate changes.
The scientists said without Lake Mead and neighboring Lake Powell, the Colorado River system cannot sustain the population of the Southwest through an unusually dry year, or worse, a sustained drought.
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