LA Times: The nation - in fact, the world - needs to wean itself from fossil fuels if it is to have any hope of managing climate change. Burning coal is particularly bad for the environment, pumping far higher quantities of global-warming compounds into the atmosphere than natural gas, oil or other carbon-based products do. So it's heartening that the U.S. has been using less coal to generate electricity in recent years. An unrelated drop in coal-fired steel production in China has also reduced the amount...