The Contrail Effect on Global Warming
Counter-intuitive impacts to climate due to man-made clouds. Not what you’d expect. Basically, smog is saving us from much worse global warming impacts.
Human greenhouse impacts add 2.6-3.0 W/m^2^
Smog (global dimming) has reduced it by 1.5 W/m^2^
Smog has saved us! Reducing smog without removing greenhouse gases will be the worst thing we can do.
Of course, this is all from PBS, so we probably can’t trust it.
Contrails over Southeastern USA 
