Comprehension skills lacking much ?
CO2, as per links provided by others is identified as the "barrier" for new plants...and is not retrospective...i.e. it doesn't apply to older plants (or their coal mines), so is moot.
Acid rain and smog are just part of doing business for a new plant (yes, even in China), are not a barrier to new entrants, and yes, are being applied retrospectively to plants that is basically up to the stage of re-licencing...and as the EPA have stated in the links that you and others have provided...is negotiable, and the decision to close plants is that of the station owners, not the EPA.
Faux have argued that they are there to provide entertainment for their target audiences, NOT facts and truth.
You lot must be thoroughly entertained