Roger Pielke demonstrates again why the Prometheus blog is must reading for those interested in the intersection of science and public policy. I don't always agree with Pielke, but he's very thoughtful, insightful and provocative. Here's an excerpt from his latest post:

efforts to justify greenhouse gas mitigation policies on preventing human impacts run up against the reality that if it is human lives that you really care about, then there are obvious, straightforward and comparatively inexpensive ways to reduce human death and suffering that do not involve first reordering the global energy system. . . .

. . . adaptation to climate change by focusing on reducing societal vulnerability to climate-related impacts deserves a much more prominent role in discussion of climate change. At the same time, advocates of climate mitigation should think carefully about the use of human death and suffering as a justification for adoption of greenhouse gas emissions -- the numbers don’t make a strong case.