Time: Its not the happiest time to be an environmentalist. Climate change hit home last year with brutal force: 2012s historic drought singed much of the Midwest, turning farms to dust and withering the corn crop. Other parts of the U.S. suffered through storms like Sandy and massive wildfires. Average annual temperatures in the continental U.S. beat the previous recorded high by a full 1°F (1.8°C). And the future is uglier still: over the weekend, British economist Nicholas Stern warned that climate...