Earlier quoted context omitted.
If you don't stop global warming - it's not going to be pretty either. And taxing rich, while a good idea - won't solve the problem, because there's so few of them that it won't matter, nevermind how exuberant they CO2 emissions are. So basically choose your poison or hope for magic tech to appear soon.
> because there's so few of them that it won't matter What do you mean?? Literally, you could redistribute billionaire/millionaire wealth and it would be more useful than taxing the average person tens/hundreds of euros more, when they can barely afford to survive. In fact, ongoing taxation that reduces the loopholes that elites get away with, would be even more beneficial.
There may not be a way to make that burden fall on the rich. I'm not sure what percentage of a society's energy is spent on maintaining the lifestyles of the wealthy but it wouldn't be weird if it is low in absolute terms.