Jonathan Porritt

For him, the choice is clear:

"The prospect of Boris taking over London’s Climate Change Action Plan is even scarier. He may have learnt not to reveal his full contrarian bigotry on climate change, but he really doesn’t get it, and would rapidly scale back or completely get rid off the ambitious targets in the Action Plan. And that would be a massive set back. Internationally, London is widely recognised as one of a handful of cities showing real leadership on climate change. And Ken Livingstone has driven that personally, in a very effective partnership with his deputy, Nicky Gavron. Just as he has driven a host of other environmental and sustainability priorities."

I'm soliciting views from environmentalists, so this interests me. I left a comment.

"Hello Jonathan. I've been writing about the mayoralty campaign for the Guardian and keeping my own blog about it. I'm interested to read that you see such clear differences between Ken and Boris on green issues, given that some commentators - and, notably, the Lib Dem candidate Brian Paddick - have expressed doubts about the true environmental benefits of Ken's LEZ and his proposed new £25 extra- congestion charge on gas-guzzlers (particularly as small cars will be exempted from the c-charge altogether under the same policy.) As a voter as well as a journalist I'm finding it quite difficult to reach conclusions about the competing policies and claims of the three leading candidates and those of Sian Berry. I'd be fascinated to read more from you on this subject."

It hasn't appeared on his site yet. Later, maybe? Hoping to hear from you, Jonathan.