SO2 actually (very temporarily) cools things down by seeding clouds and creating sulfuric acid aerosols. That's not, like, /good/, but by making more clouds (and also decreasing the size of droplets in clouds, and thus increasing their number) more sunlight is reflected to space.
Ref: https://twitter.com/hankgreen/status/1687535533831102464
Aerosol Masking Effect. It's been known about for ages and it amazes me that they banned it from ship fuel. It seems incredibly short sighed to me.
Before reducing SO~2~ we need to stop and reduce CO~2~, otherwise we cook. Look at how things have escalated this year. I mean we also went straight from La Niña to El Niño too but the lack of aerosol masking has very likely had an impact.