In an article recently published in Nature, Professor Peter Cramton and his collaborators lay out an approach to reducing global carbon emissions that they argue would avoid the problems that have plagued past efforts based on voluntary individual-country commitments.  The article, co-authored with David J.C. MacKay, Axel Ockenfels and Steven Stoft, uses findings from the literature on game theory to argue for setting a global price for carbon rather than trying to reach agreement on quantity targets for countries’ emission reductions.  Click here to read the Nature article and here for a summary of a symposium Cramton helped to organize at which several related papers were presented.  The symposium site is here