LAKE MEAD NATIONAL RECREATION AREA , NEVADA - MAY 10: A 'Danger' sign is displayed on the Nevada side of the Hoover Dam, with drought-stricken Lake Mead in the background, on May 10, 2022 in the Lake Mead National Recreation Area, Nevada. The U.S. Bureau of Reclamation reported that Lake Mead, North America's largest artificial reservoir, has dropped to about 1,052 feet above sea level, the lowest it's been since being filled in 1937 after the construction of the Hoover Dam. Two sets of human remains have been discovered recently as the lake continues to recede. The declining water levels are a result of a climate change-fueled megadrought coupled with increased water demands in the Southwestern United States. (Photo by Mario Tama/Getty Images)Photo: Getty Images