According to California's Fourth Climate Change Assessment, average daily highs in the state's inland deserts could increase as much as 14 degrees this century if greenhouse gas emissions keep rising.
Since 2006 the state has struggled to deal with a cascading series of problems with its prisons and is now undergoing its biggest transformation since 1851.
From the beginning, the Central Valley's productivity was a result of the most intensive farming experiment the world had ever seen. And now, farmers are pushing even harder against biological realities. An excerpt from Mark Arax's critically acclaimed new book, "The Dreamt Land."