Forbes: A dramatic slump in coal production has pushed U.S. carbon emissions so low that, were the trend to continue, the U.S. would achieve its 2030 emissions goals this year, according to one professors analysis of data from the Energy Information Administration.
Coal production has plummeted 29 percent in 2016 compared to the same period last year, crushed in part by cheap natural gas, which emits about half as much carbon. Unless coal rebounds, the U.S. could achieve a 32 percent reduction in emissions...