Yes...but. I ran the numbers on this idea many years ago and it's doable with current technology. The good news is that the day it's deployed global warming s

Yes...but. I ran the numbers on this idea many years ago and it's doable with current technology. The good news is that the day it's deployed global warming stops instantly. It will still take a while for the planet to cool down, and much longer still for the ice caps and glaciers to return, but the warming up stops immediately. The bad news is that it would probably take decades to deploy, and it will cost $Trillions, just as tfa points out. The even worse news is that it does not stop the acidification of the ocean and it might even give fossil fuel burners an excuse to continue business as usual. It might be a good idea after we stop dumping carbon into the atmosphere, but not before.