Prior to 2000 the Clinton Administration had managed to back the coal guys into the shadows. They passed legislation for "natural gas fired electrical generation" which would eventually end coal burning at U.S. power plants. Of course, the coal guys put a lot of $ into the Bush campaign in hopes of overturning said legislation. Once Bush came into office, the term
"clean coal" was invented. Bush shoved this through congress on the tails of 911 and the highest approval rating ever for a President.
Of course, we all know the rest of the story....
Natural Gas fired technology prevents this from ever happening.