This story was originally published by the Guardian and is reproduced here as part of the Climate Desk collaboration. Explosions roared through the canyons lining the Klamath River earlier this year, signaling a new chapter for the region that hugs the Oregon-California border. In October, the removal of four hydroelectric dams built on the river was completed—the largest project of its kind in US history. The blast of the final dam was just the beginning.