Scientific American has had articles on this. For $20 billion we can put enough sulfur in the upper atmosphere to block enough sun rays to stop global warming.

Scientific American has had articles on this. For $20 billion we can put enough sulfur in the upper atmosphere to block enough sun rays to stop global warming. But this solution has many, many problems. For instance, the sulfur eventually comes down and adds to the acidification of the oceans, already bad. The strategy is like drinking alcohol to calm down after you’ve done too much cocaine.