I am not sure about you, but me and many other commenters here, live in Democracies and in places where capitalism offers choice. Yet, most people weren't voting for the green parties. Oversized vehicles are very popular. Even people who voice their concerns about climate change have complained to me about gas prices. When I tell people they should celebrate high gas prices I get treated like I am insane. We've been voting literally and with our wallets for the status quo. The vast majority of citizens is not without blame.

Yeah, it's the definition of a game theory prisoner's dilemma type situation. Which normally governments are best positioned to solve. But this one requires coordination between politicians over long timescales, and across sovereign governments altogether.

So it really does require worldwide grassroots activism, which unfortunately is very slow and incremental. I'm not hopeful... Our ape brains are just not built for what it takes.