March 11, 2019 Update from The Guardian: "Robock said one of his studies contains a list of 27 reasons why Earth-cooling aerosols might be a bad idea. And he added that the technology could cost hundreds of billions of dollars a year and would pose complicated ethical questions, such as whether people have a right to see a blue sky."
Watch Jason Box, and others, discuss geoengineering.
The video reminds me of Clive Hamilton's March 10, 2015 Scientific American article which notes "Yet every [National Research Council] scientist, including the council authors, is convinced that if albedo modification is implemented and not followed by a program of global emission reductions, then we are almost certainly finished. Sulfate spraying without a change in the political system would make the situation worse."
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