The most recent issue of Stanford Journal of Law, Science and Policy is a special issue on the topic of geo-engineering. Readers interested in the challenges which climate change gives rise to may find the issue worth a look. In particular the short contribution by Robert Berg, who assesses whether the UN can be a future leader on climate change, is worth noting. Like so many others, Berg concludes that an emphasis on international law only is not the best way forward: In the end, the question is: how can the United Nations best help stimulate the requisite national actions…