The Colorado River is evaporating, and climate change is largely to blame
An hour’s drive from Las Vegas stands America’s Hoover Dam, a commanding barrier of concrete holding back the trillions of gallons of Colorado River water held inside Lake Mead. The dam is a proud place, built by thousands of hands and with 5 million barrels of concrete. Its golden elevator doors, Gotham-esque pillars, and stoic guardian angel statues line the lofty walkways atop the structure. A U.S. flag beating patriotically over the desert gets swapped out every few days, and then put out for sale in the visitor center.