Grist: It was only a year ago that Californians were marching into another relentless summer, having endured an almost water-free winter, and the entire western United States was stricken by drought. Even if you dont live in this part of the world, you surely heard about it. Maybe you wondered how you would get avocados and almonds once California shriveled up. Who would make movies once the desert sands swallowed Hollywood? Who would fund Tinder for wombats when the last Silicon Valley venture capitalist...