Two models are currently being pitted against one another in the discussion of a fair climate regime: Contraction and Convergence (C&C) and Greenhouse Development Rights (GDR s). The controversy revolves around issues of fairness and feasibility, and the question of how fair is fair enough. Other approaches with the potential to mitigate emissions fairly are not in discussion at present. The debate over these concepts is vital, as having actors who are individually committed to ambitious goals but divided at the conceptual level could prove fatal for climate policy as a whole. The following is an overview in the magazine of the Heirich Boell Foundations of the core elements of both with Katrin Krause and Konrad Ott for C&C and Tilman Santarius for GDRs.
How Fair is fair Enough?

As with the 'Berlin Wall', the 'Climate-Firewall' can yet come down. 'Climate-detente' possible at COP-17 with negotiated rates of C&C.
Why not

Why not