That's a loaded question thedude...
You could say just as easily that a rule universally applied that requires countries to ship goods through one port in one country is "fair" because it applies to everyone, regardless of the fact that it would affect every country differently.
Asking China to cut 10% of it's pollution is going to have a completely different effect and cost than telling the US to also cut 10%. Again, how do you measure fairness?
You have to look at the costs and the results gained through the use of either mandatory or country-specific measures. We know we have to cut pollution, duh. It's not a suprise. What we don't need is a bunch of people in a country that doesn't use coal to tell us we can't burn coal here. We don't need countries with no beef exports to speak of telling us we need to tax cow farts. Just because the tax is "universal" doesn't mean it is fair or even will have the intended consequences.
The world needs a good cupful of STFU when it comes to this treaty. Take a peek at the CO and CO2 maps generated by the latest climate satellites and target the hotspots, not just the guy with the biggest wallet. Maybe spend some time actually doing something about the lunatics cutting down and burning Brazil's rainforests for example... Not one of those countries complaining about the kyoto treaty has a clean environmental record, whether it's excessive logging, overfishing, fishing practices that needlessly kill off non-targeted animal populations, or whatever. They're trying to deflect attention away from themselves to what they see as an easy target.
Want to know how much we give a crap? Take a look at the high exchange rate and you'll know how big a finger we're flipping the rest of the world. We're making it expensive for Americans to buy foreign goods, plain and simple. 1.95 pound/dollar exchange rate? I guess we don't buy that brit stuff anymore. Sure it will have a short term depressive effect on the US but after normal market forces result in us entrenching ourselves against the bad exchange rate, we'll be stronger than ever and even more able to dispense those portions of STFU.
We don't need most of the rest of the world, and that pisses everyone off a great deal because they know it's true. We just happen to have a president who's at least partially willing to say "Take your charity handouts and STFU." You can always say no... Many countries do and they prosper as well as they should.