Rio-20 is a big fat flop, the spin aside. Arguably, while the fault likes primarily with the developed world, the BRIC nations need to bear more scrutiny.
We need a three-tier, not a two-tier, ranking of nations. China would definitely be in that, as would Brazil. India might.
My solution would be a carbon tax here in the US, which, under WTO rules, if I am correct, allows carbon tariffs on imports. China, and Brazil/India, would have to get cleaner.
And, this would, beyod the eglobal warming angle, satisfy so many domestic US constituencies.
Non-wingnut US businessmen who manufacture here would knoiw we're not selling out domestic industry. That includes US utilities.
Labor/New Deal liberals know that part of the money from this could fund job (re)training, as well as be a price incentive to bring at least a few jobs back to America.
Environmentalists know that beyond global warming itself, this could help the environment more broadly. (That said, some fellow environmentalists need to get on the breeder reactor bus, IMO.)
So, let's do it!
Or, we can have business as usual.
That said - a bit of schadenfreude; red states will get hit worse by much of the change. That includes Texas and Oklahoma, definitely, Arizona and Utah most definitely. And, somewhat, Florida. Of course, purplish Colorado and split Nevada and New Mexico will also get swept up. In California, the more "red" southern Cal will hurt worse.
I'd love to be president and veto any and all agriculture disaster bills due to drought-related crop loss on the Plains until red-state senators knuckled under.