The output from the scrubbers is epa regulated, and it's no longer easily disposed of, which adds to the expense and complicates planning of implementing scrubber technology.
The elimination or restriction of coal use would eliminate 40% of the power currently used in the United States. Where are we going to make up the difference?
Solar and wind are weather dependent, and the backup batteries which would be required for grid redundancy with the heavy use of those technologies are REALLY environmentally nasty, both in production, which require massive amounts of strip mining, and use, as an industrial-sized battery would require some special provisions. In addition, the production of the generators for wind turbines also require massive amounts of strip mining.
Nuclear energy production has been hamstrung in the US by lawsuits and scare tactics, and the sole proposal for a workable nuclear waste storage site has been stuck in gridlock.
Natural gas production is being fought tooth and nail.
Where would you propose we acquire new energy sources?