East Bay Express: During a major speech on climate change last week, Governor Jerry Brown warned that the planet is quickly approaching a point of no return. If we don't act fast to reduce greenhouse gases, he said, "five years from now, it's over." The Oakland Tribune reported that Brown issued his dire warnings at a technology summit in the Silicon Valley, which also featured a "call to action" report on global warming signed by more than five hundred scientists. Yet despite the governor's tough talk, several environmental...