Via Bloomberg:
No, that’s not the title of the next L. Ron Hubbard book. This is a serious idea.
There’s a cheap, quick, dirty, and controversial way to combat global warming that isn’t on the agenda of the United Nations climate summit in Paris, which runs from Nov. 30 to Dec. 11. It involves replicating the planet-cooling effect of a volcanic eruption.
When Mount Pinatubo in the Philippines blew in 1991, its emissions briefly reversed most of the global warming that had occurred since the start of the Industrial Revolution. The idea is to mimic Pinatubo by using a fleet of modified business jets to inject fine droplets of sulfuric acid into the stratosphere, where they would combine with water vapor to form fine sulfate particles that reflect sunlight away from the earth.