Huffington Post: The publication on 27 September of the first of a series of four reports by the Intergovernmental Panel on Climate Change (IPCC) will be a major event. It will of course be significant in that it will provide the latest in-depth scientific review of our understanding of climate change, with the series of reports covering some 3,000 pages and involving well over 800 authors. However, it's fair to say that the environmental and economic case for urgently tackling climate change has already compellingly...