Now that the EPA can duplicate any suicidal emissions pact world leaders can cook up (exempt: emerging nations, poor nations and nations that value prosperity), the president would not need to ratify a thing. And who needs treaties when the Obama administration already has threatened the Senate with unilateral regulations on greenhouse gases unless a cap-and-trade bill is passed? The administration need only mirror the agreement it can't make.
In effect, the EPA is warning most of the nation's businesses that burdensome regulations are coming unless the president is suitably mollified with a law that severely caps carbon emissions. In other words, figure out your own punishment, kids, or we'll have to come up with one for you. You know, choice.
The administration also acts as if this were the last chance to save mankind, when, in fact -- on the heels of the ClimateGate scandal, sagging poll numbers on warming hysteria and genuine economic worries (worries that would be exacerbated by more growth-inhibiting regulations) -- it might only be its last chance to cram through a framework for harsh emissions standards.
Granted, there are a few obstacles standing in the way. Votes. People. Process. And so on ...