> Did you know that coal plants, which still make up the majority of U.S. energy production, are only about twice as efficient today than they were a century ago?
Given how there's a huge trade going on in CO2 emission rights (at least in Europe), that's already a thing. Less CO2 emissions (catching them, filtering, etc) means they can sell off their CO2 emission rights to other companies. (see: https://en.wikipedia.org/wiki/Carbon_emission_trading )
Wasn't most of the effort put into making them MUCH MUCH cleaner? I mean, the https://en.wikipedia.org/wiki/Cuyahoga_River doesn't catch on fire anymore, and the amount of https://en.wikipedia.org/wiki/Acid_rain seems pretty tolerable compared to the early 80's