Why would it be too late?
It really doesn't. Climate change is a global problem. It would need a global solution, and everyone should know that that's beyond unlikely to appear... So the only thing you can do is reduce local pollution - which is meaningful in it's way (better quality of life), but has no long term impact on the climate.
It's just finding new narratives to protect the incumbent moneyed interests from ever having their infinitely increasing rate of growth threatened.
Civilisation takes millennia of stable, plentiful resources to create, and a week without food for 30 percent of the population to utterly destroy.
I’d love to be wrong, if you disagree please say why.