Princeton Environmental Institute an equal opportunity institution. Recent studies project that Developing World carbon output will be large enough to create a climate crisis in and of itself by mid-century - irrespective of actions by the Developed World. In this talk, Martin Bunzl examine the implications of this claim for the terms in which debates about climate are usually posed. Bunzi argue that a simple per capita allocation is an unlikely formula for success even if it is prima facie fair. Martin Bunzl is Professor of Philosophy at Rutgers University where he directs the Initiative on Climate and Social Policy.