This nice, user-friendly summary of the Cancun challenge, was published by the UK’s Christian Aid. Cancun Climate Talks: Bridging the Divide is notable for the use to which it puts GDRs, which appears not as an impractical product of untethered idealism, but rather an reminder of the true scale of the challenge, and as a guide to the needed level of ambition. Will anything like GDRs ever be on the agenda? It depends, of course, on a reorientation of the negotiations. As of this writing, it doesn’t look like Cancun is going to do it.