Unfortunately the problem seems to be a Prisoner's dilemma for countries - curbing CO2 emissions without all other countries doing so puts said country at an economic disadvantage. It also puts a large onus on developing countries that don't have the established industry to easily convert to "greener" technologies/industries. Top that with most Western countries being in relatively low threatened areas comparatively and you get a large populace happy to remain ignorant.

I'm convinced the only possible savior at this point would be a Superpower aggressively enforcing environmental regulations to the point of going to war over it, but that seems unlikely.