To change opinion on climate you’re talking 30-705 swings. Even those who believe in it don’t take it that seriously for the most part. Support for a meaningful level of carbon taxation is quite low.
I think it’s beyond the level of billionaires to sway. They could buy politicians, who are easier to influence. But politicians can’t move far ahead of the people.
Yes, I’m aware the petroleum industry and Fox News have a very effective disinformation campaign. But that’s moving in a short term direction people are already inclined to support.
Look at Japan and Germany, two countries largely uninfluenced by American media propaganda and renowned for sensible planning: they’re both tearing down nuclear plants and increasing their carbon emissions.
The world population at large doesn’t take climate change seriously, and it’s damned hard to swing public opinion as much as we would need.