With air pollution, we find that the smog is actually carbon monoxide, not carbon dioxide. This means it will be visible and not invisible carbon dioxide that erodes the world so. If we were to observe that carbon monoxide and dioxide are both containing many carbon atoms, and, if we were to separate them from the oxygen, we would see stuff fall down, or, just float off, without the acidic qualities of oxygen to penetrate the other gases, yes?
So, to erode these molecules, while we still need to observe that the air we breathe needs to be balanced the way it is, we could send out radio waves that will detach them fro each other. This could be done by observing that electricity 'burns,' yes? The loose electrons in radio waves will sieve out the oxygen from the carbon, and, we would be left with normal gases, of course. Hell, we would veen be making breathable air out of junk!
Now, the answer is simple, simply bombard the planet with WI FI, and, other signals.