Zero emissions from air and sea

Terry Barker from the Centre for Climate Change Mitigation Research at Cambridge University envisages five eight-year trading periods starting in 2013, full auctioning of allowances, and a successively reduced emissions cap based on emissions in 2004-06. Dr Barker was a coordinating lead author on the IPCC’s fourth report into climate change last year. The report is summarised at www.tyndall.ac.uk/publications/briefing_notes/bn26.pdf