"Clean coal" seemingly has endless dollars to advertise its dirty, environmentally destructive 300 year old technology. In addition to the massive amounts of greenhouse gases and particulate pollution produced by coal fired plants, there is the environmentally destructive mining practice called "mountaintop removal" where mountains are simply blasted to get to the coal inside the mountain. This causes total destruction of habitat for wildlife, and pollutes the air and water, something that has caused many local residents to get sick or die, as depicted in the documentary "The Last Mountain." In addtion, the coal companies have a history of abysmal records regarding worker safety.
We need to find alternatives to the extremely environmentally destructive practice of mountaintop removal, because once an area is destroyed in this manner, it cannot be restored, except at astronomical cost. And, fracking for gas, deep water drilling for oil, buying oil from OPEC, and building more Fukushimas aren't solutions. Since we ignored the warnings and math that go back to Rachel Carson's "Silent Spring" over fifty years ago and President Carter's exhorting us to develop greener technologies over thirty years ago, we are all going to seriously cut back on our excesses, if we wish to hand a planet worth living on to our children.