This would be a great opportunity for stalling (or even reverting) part of the problem till batteries and other clean products get crazy cheap.
Edit: I think this is important because it's much more doable. It is a much easier sell - fits the general story of economic growth, that almost everyone believes that economies (especially their economy) should expand. This would be a cross-national collaboration in which many people would take pride (we own the planet, and we're handling it well) and could have technological side effects like the flight to the moon. The current ideas which find it hard to get themselves divorced from slowing down economies are simply much less palatable.
So I really don't think it should be hogging the Limelight, now that we actually making some progress, even if it's clearly very late.
These took out much of the heat from greenhouse gasses. And in my opinion you either buy the climate change models (which are very aware of aerosols), or you don't. It doesn't make sense to believe that the planet will heat up more, that it is due to humans, but aerosols are not a part of the story.