Check out some of the fund breakdowns and look at how much is spent on climate change and renewable energy
https://funds.effectivealtruism.org
https://www.givewell.org/maximum-impact-fund
The common argument is that the best way to try and make an impact on climate change is to fund lobbyists to make change at governmental levels https://www.theatlantic.com/newsletters/archive/2021/12/most...