> One serious issue with that is that injected sulfides do not stay around long. To me, this is one of the best features! Because if, by some unforeseen anomal

> One serious issue with that is that injected sulfides do not stay around long. To me, this is one of the best features! Because if, by some unforeseen anomaly, it turns out to actually have bad net effects, you can just wait 1-2 years, and it goes away by itself! The reality is that even if we stop CO₂ emissions cold today, CO₂ levels will stay the same, not go back to preindustrial levels for at least several centuries. So the best practical plan I know is this: - Learn how to spray SO₂ in the stratosphere so it cools down Earth to desirable levels. - Figure out large scale CO₂ sequestration, to bring CO₂ levels back down. My guess is this takes ~50 years. - As CO₂ levels go down, we can tamper down the SO₂ injections, and get the planet back to a healthy state.