The Colorado River is evaporating, climate change largely to blame

photo: the 'bathtub ring' shown how low the reservoir levels are. The Colorado River is evaporating, and climate change is largely to blame

Colorado River water held back by the Hoover Dam. IMAGE: SHUTTERSTOCK / ROCKET PHOTOS – HQ STOCK

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,