California's Salmon Barely Survived the 20th Century, (But Will They Vanish Before the Next One?)

... Farther upstream, the Bureau of Reclamation is required to maintain flows of cold water... "But almost every year, the Bureau of Reclamation asks the Water Board to modify that rule, and the Water Board rubber stamps that request," said Jon Rosenfield, a scientist with the watchdog group San Francisco Baykeeper.