Just in case you were starting to relax (or sink back exhausted into your chair) heres a little wake up call, from the Proceedings of the National Academy of Sciences (US). Seems that the recent rate of increase of CO2 emissions from fossil-fuel burning and industrial processes has been accelerating their global growth rate recently increasing from 1.1 to 3.0 percent a year. Why Because some the worlds poor (think China) are getting richer, but that we havent managed to break the link between economic growth and emissions. As the PNAS editors say, the results have implications for global equity.