If these alarmists were serious they’d be bugging China to quit putting 2 Coal fired plants on line every week and would have been advocating NUCLEAR POWER for the last 20 years.
But....what they really want is for industry and the population growth it aids, to dry up and blow away.
Don’t forget that Mao started all this massive, countrywide air pollution when he told the people to make charcoal briquets in their little backyard furnaces (in the 1950’s). (Photos in Life Magazine).
I think that cloud is still circling the earth.