So it's down to us and the Chinese as the biggest offenders.
Only, the Chinese--being no fools--have begun investing heavily in alternative-energy industries even while they continue to befoul the environment. They are actually implementing a green jobs program that that Socialist in the White House can only dream about.
The Chinese political system isn't hobbled by self-interested senators from energy-producing states who hold enormous sway in government policy, so they are more supple than we are when it comes to turning the ship of state around, at least in this regard.
Besides, we all know that climate change is a hoax, anyway, so let the other fools invest in windmills and solar mirrors and hamster treadmills or whatever. We've got jobs in the mines and the oil patch to protect, and nowadays, nobody wants to interfere with the jobs we've still got.
And what if we're wrong, and it isn't a hoax? That's the beauty of it: nobody's gonna know until it's too late. And those who may find out the hard way either aren't born yet, or they're still too young to vote.