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In this Tuesday, Nov. 3, 2015 photo, a worker takes a break at an idled coal mine near Ordos in northern China's Inner Mongolia Autonomous Region. Demand for coal is leveling off, but it will remain a key energy source for decades, and its future is closely tied to China, the world's biggest coal user, producer and importer. It burns 4 billion tons of coal a year, four times as much as the United States. (AP Photo/Mark Schiefelbein)
Associated Press | November 15, 2015 10:32 pm
Coal not going away anytime soon despite renewables push