The Greening - and Maturing - of Boris

Despite previously attacking the Kyoto Protocol - which regulates international carbon emissions - as "pointless" and saying that anxiety over climate change was "partly a religious phenomenon" Johnson now admits that the 2006 Stern review on the issue had convinced him of the need to act. "When the facts change, you change your mind," he said.

How many senior politicians would dare say that (hello ID cards, hello Gordon)? I predict that we will see far less of the buffoonish Boris, and much more of this grown-up, sensible Boris in the future. Future PM, anyone?