I think we need to start with them, and we can reevaluate as we go along, to see if we have gotten rid of enough of the polluters to save the planet...(sarc)
The late Tom Clancey had the proper solution for these insane people in his superb novel, “Rainbow Six.”
“Rainbow Six” is a great read; John Clark and his “Rainbow” warriors solved the problem about as well as it could have been solved, IMHO.
Hint: the solution was most definitely not Politically Correct!