[gsf_emergency]

not a major one..

https://www.quora.com/Why-is-SO2-not-considered-a-major-gree...

In fact, it is a candidate for reducing warming

https://en.wikipedia.org/wiki/Stratospheric_aerosol_injectio...

https://techcrunch.com/2025/04/18/trump-epa-targets-two-man-...

(Neal Stephenson wrote a novel promoting it:

Termination Shock)