Forty years ago people were worried that sulfur dioxide in the atmosphere was causing acid rain and killing the trees and ponds.
Now some people are proposing purposely injecting sulfur dioxide into the atmosphere to cool the planet down, as happened after volcanos released ash, dust, and sulfur-dioxide into the atmosphere.
The SO2/Acid Rain thing wasn’t entirely illegitimate.
Deliberately injecting SO2 into the atmosphere is dumb ... especially when done to worship at the altar of “Climate Change”.