<<Asia hands down- mainly India and China...both developing countries spew tons>>
oh my, just last year, or maybe this year, China, with 4 times the population, has caught up to the US in the amount of CO2 produced.
obviously they're the worst by far.
clearly, if you're counting co2, the us is light years ahead of anyone else.
worse, the US attitude or entitlement, and refusal to cooperate with the rest of the world, has made it worse.
the US loses no matter how you slice this cake.