Six years into the worst drought in history, fresh oranges go for $10 each, and food is scarce. Just when Californians think things can't get worse, their last lifeline, the California Aqueduct, is held hostage, creating more havoc than a Richter 7. Scott Acosta, a plant biologist and the son of a Mexican farm worker, spends twenty hours a day in the most advanced greenhouse in America. Scott, who is deaf and hears with a cochlear implant, has bioengineered...