A jet skier passes a thick white line that shows fallen water levels at Lake Mead, the nation's largest reservoir which has reached its lowest water levels on record since it was created by damming the Colorado River in the 1930s, as growing demand for water and climate change shrink the Colorado River and endanger a water source millions of Americans depend on, near Boulder City, Nevada, U.S., April 17, 2022. Picture taken April 17, 2022. REUTERS/Caitlin Ochs