Climate policy after 2012, when the Kyoto treaty expires, needs a radical rethink. More of the same won't do, argue Gwyn Prins and Steve Rayner. Starting from the challenging assertion that the Kyoto Protocol is failing, Gwyn Prins and Steve Rayner argue that it's time to adopt a more radical approach to climate policy. Their suggested alternatives include a bottom-up approach to emissions trading, a massive publicly funded research effort in energy technologies and increased investment in adaptation.