FILE - A kayaker paddles in Lake Oroville as water levels remain low due to continuing drought conditions in Oroville, Calif., on Aug. 22, 2021. The American West's megadrought deepened so much last year that it is now the driest it has been in at least 1200 years and a worst-case scenario playing out live, a new study finds. (AP Photo/Ethan Swope, File)