Mother Jones: Gary Johnson, the Libertarian candidate for president, takes what he calls the "long-term view" of climate change. "In billions of years," he said in 2011, "the sun is going to actually grow and encompass the Earth, right? So global warming is in our future." The former New Mexico governor did acknowledge that humans are making the world warmer in the near term, toobut he doesn't think the government should do much about it. In the same speech, he denounced "cap-and-trade taxation," said we "should...