Science tells us how climate works, technology provides renewable energy, but it's up to politics to do the switch. If we don't, then we will simply run out of time, problem will grow, and then we will get into a dead end where we really won't have the technology to fix it. There was a last chance to do it right around these years, we blew it by two trump presidencies instead. If that isn't politics, then nothing is.
Where do you get the idea that politics has, or has ever had, the ability to do anything of the sort?
> There was a last chance to do it right around these years
You're not getting it. There was never any chance to do it. You might as well be arguing for sacrificing goats or reciting ritual incantations. There is no political solution to climate change, and there never was.