Rolling Stone: It took Congress more than three decades to consider a major initiative to ward off global warming, but only a few days to kill it. In June, the Senate rejected the Climate Security Act, which would have put America on track to slash greenhouse-gas emissions by 71 percent by 2050. The bill was specifically crafted to soften the blow to the nation’s coal industry – coal generates more than a third of all carbon-dioxide pollution – by providing coal-burning power companies with $300 billion in …