We forget burning coal releases a lot of really unhealthy pollutants into the atmosphere along with a lot of CO2. That explains China's $400 billion, 30-year deal with Russia to import natural gas from eastern Siberia.
I think the bigger factor is the fed shutting down a lot of coal fire power plants, reducing demand for coal even more.
If coal, with the scrubbers and all the pollution control equipment, still police, then why not face it out? Why the mad rush to close all the cold plants before their life cycle has ended? Recipe for economic waste. It only makes sense when you consider there are crony capitalists standing by, and or relatives of politicians, who have opened up phony green energy companies to profit. Greenhouse gases? If that were real, algore or would be living in a modest house and flying commercial.