The Salton Sea is the largest lake in California, 360 square miles of unlikely liquid pooled in the middle of the Sonoran Desert. Now the sea is slipping away. The Salton Sea needs more water — but so does just about every other place in California. And what is happening here perfectly illustrates the fight over water in the West, where epic drought has revived decades-old battles and the simple solutions have all been tried. Allowing the Salton Sea to shrink unabated would be catastrophic, experts say. Dried lake bed, called playa, is lighter and flies farther than ordinary soil....