I just finished reading Termination Shock by Neal Stephenson. Seems unreal that people are already trying to augment(because "repair" isn't the right word) the Earth's climate using SO2.
Augment and repair are not the right words here. Since the Industrial Revolution, we've already been cooling the Earth by influencing radiative forcing; we're just doing it the worst way possible, by applying sunscreen at the wrong altitude (troposphere) and using too much of it.