Earlier quoted context omitted.
We stopped high sulfur when we realized it was causing acid rain. CO2 is also acidifying the oceans, so there aren't a lot of things we can pump into the atmosphere without consequence. Best to avoid doing that altogether.
We won't stop pumping CO2 into the atmosphere (Germany, India and China actually increased coal burning in 2026, in all 3 cases despite all the good news about solar installations). Also we can't prevent fossil fuel producers from digging up fossil fuels. And, because of entropy, reducing CO2 already in the atmosphere is a non-starter. For one thing, one can reasonably assume that would at minimum require doubling hu…
To add to that: there are no good alternatives to coal as the stabilizer in a renewables-fed grid, for Germany. They don't have hydro and don't have nuclear. Even Spain now runs some coal despite having near-100% renewable grid for a year. That big blackout was a big lesson for all grid operators. Please don't shame countries for running a small percentage of their grids on coal.