Hmmm. I would vote against.
Also, if anyone has any dirt on the NAS, feel free to spill. Besides the recent anthropology-sociology-evolution-culture dispute.
This sounds like a really bad idea.
Of course, they note, there is no chance that such injections will begin anytime soon, because injecting that much sulfate aerosols into the atmosphere would destroy the ozone layer. But, their findings do suggest that if another, safer aerosol could be found, such a technique might prove viable.
So it is a bad idea.