Climate Central: The amount of electricity generated using coal in the U.S. slid to its lowest level since at least 1970 in November, according to data released this week by the Energy Information Administration.
Coal-fired power plants generated 29 percent of the U.S. electric power supply in November, dropping from nearly 35 percent in July and 39 percent for all of 2014. The trend continues coal's long slide away from national dominance as the primary source of electricity in the United States, EIA analyst...