not a major one.. https://www.quora.com/Why-is-SO2-not-considered-a-major-greenhouse-gas#:~:text=Sulfur%20dioxide%20(SO2)%20is%20not,does%20contribute%20to%20a

not a major one.. https://www.quora.com/Why-is-SO2-not-considered-a-major-greenhouse-gas#:~:text=Sulfur%20dioxide%20(SO2)%20is%20not,does%20contribute%20to%20acid%20rain. 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_injection#:~:text=Volcanic%20aerosol%20forms%20in%20the%20stratosphere%20after%20an%20eruption%20as%20droplets%20of%20sulfuric%20acid%20that%20can%20prevail%20for%20up%20to%20two%20years%2C%20and%20reflect%20sunlight%2C%20lowering%20temperature. https://en.wikipedia.org/wiki/Stratospheric_aerosol_injectio... https://techcrunch.com/2025/04/18/trump-epa-targets-two-man-geoengineering-startup-for-polluting-the-air/ https://techcrunch.com/2025/04/18/trump-epa-targets-two-man-... (Neal Stephenson wrote a novel promoting it: Termination Shock)