No, what I'm saying is that the global community is informed by the science. The actions we're taking in the negotiations are fundamentally founded on that. I think the area of debate and what we are negotiating relate to what we are going to do collectively. The science can only tell us what we need to achieve globally; it cannot tell us what individual countries or groups of countries must do.
There are other considerations—equity considerations, for example—that inform the fact that developed countries have to lead in this process. There's a debate around the historical emissions and how these accumulated emissions inform temperature increases today. But I don't think there's an inconsistency, though I think you've put your finger on what we are negotiating, which is the burden sharing.