data the most carbon-intensive fossil fuel, acid mine drainage represented about a quarter Coal | Center for Climate and Energy Solutions coal Center for Energy and Climate Solutions 120 years greenhouse gasses 44 per cent Center for Climate and Energy Solutions 91% of coal consumption in the U.S. 30 percent highest carbon content of all the fossil fuels responsible for 44% of global carbon emissions supplying 60 percent of the power markets 44% of carbon emissions the earth’s atmosphere is spiraling toward instability coal coal’s large carbon footprint 44 percent of global carbon emissions 44% of the CO2 coal use 91% of coal consumption in the U.S. 25% of that pollution 60 percent of the power markets the most carbon-intensive fossil fuel, emits the largest amount greenhouse gasses represented about a quarter greenhouse gasses represented about a quarter 44% of global CO2 emissions