The nation's largest reservoir hits lowest level since 1930s amid worsening droughtThe sharp drop in water levels could lead to a water shortage declaration in August.The nation's largest reservoir hits lowest level since 1930s amid worsening drought
The western U.S. is locked in the grips of the first human-caused megadrought, study findsA megadrought that's more severe than some of the worst droughts of the past 1,200 years, is underway in a 10-state region of the Southwest.The western U.S. is locked in the grips of the first human-caused megadrought, study finds