Our executive director John on why Boris Johnson will have to work much harder on his climate change agenda if he is to have any hope of running the capital.
Boris Johnson claimed, at the launch of his campaign to run London, that he "will be the greenest mayor, far greener than Ken". His ambition is to be congratulated, but his claim invites scrutiny.
We all know that Boris is a keen cyclist - the sight of his unhelmeted blond locks blowing around the street corners of London is an iconic image. But a lesser-known passion is his professed "love affair with the car" which "will never conk out". As the motoring correspondent of GQ magazine, he tells us, "I have sometimes attained velocities which are incompatible with my new status as a tribune of the people". And in many ways he is right to highlight this apparent incompatibility - between his racy, energetic and spontaneous persona and a newly professed concern for slowing the progress of global warming. To win the mayoralty of a city like London, a candidate should be able to display a deep understanding and commitment to environmental issues, a serious appreciation of the threat that climate change poses to all of us and a coherent plan for implementing some solutions.