Hydropower's future is clouded by droughts, floods and local weather change

Hydropower's future is clouded by droughts, floods and local weather change

Lake Powell’s water degree has been falling amid a two-decade drought. The white ‘bathtub ring’ on the canyon partitions marks the decline. Justin Sullivan/Getty Photographs The water in Lake Powell, one of many nation’s largest reservoirs, has fallen so low amid the Western drought that federal officers are resorting to emergency measures to keep away…