Here is a letter that I sent yesterday to Maggie Ferncombe, the chair of the London Regional Labour party, Ed Miliband, Labour’s shadow secretary of state for climate change, and friends in the Labour party in London. It urges them to do something about the tsunami of greenwash thrown over the Silvertown tunnel project by the Mayor of London, Sadiq Khan, Labour’s most powerful elected official.
Over the last four years the Mayor and the few supporters of the project have – in defiance of reality, transport research and climate science – claimed that the tunnel project is compatible with policy objectives aimed at reducing greenhouse gas emissions. It obviously is not, as 70-odd researchers in relevant areas told the Mayor in April 2021, in a letter he did not acknowledge or respond to.

More roads produce more traffic; more traffic produces more greenhouse gas emissions; decarbonising transport means sharply reducing the volume of traffic; and the resources spent on road-building projects work against that aim, and against the support for public transport, rail, cycling and other non-car modes of transport that can make decarbonisation possible.
Although the Silvertown tunnel project is a London policy issue, it has national implications. Labour’s stubborn denial of reality about the tunnel is on the same level as the Tory government’s fantasies that licencing coal mines, new oil and gas fields, or its own £27 billion road building programme, dovetails with combating global heating.
My letter – attached as a PDF – concerns a very specific set of issues, on which the greenwash spilled over into falsehoods, used by Heidi Alexander, then London’s deputy mayor for transport and now Labour candidate for Swindon South, to justify the unjustifiable tunnel project. If you are reading this and you are in the Labour party, please have a word. Simon Pirani, 21 December 2022.
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Dear Maggie Ferncombe and Ed Miliband,
I write to ask you to take action within the Labour Party over the circulation of false information about the climate emergency by the Greater London Authority, and the Authority’s failure to deal with complaints about this false information, in breach of its own rules.
The false information was circulated in 2021 by Heidi Alexander, former deputy mayor of London, in response to people who protested to the Mayor of London about the Silvertown Tunnel project. In particular, Ms Alexander claimed:
(a) that the GLA has adopted plans to reach “zero carbon goals”;
(b) that the modelling of carbon emissions on which the GLA carbon reduction trajectory is based takes into account planned developments such as the Silvertown Tunnel; and
(c) that Arup has conducted an “independent assessment” of London’s 1.5 degree carbon reduction trajectory.
The note below explains the importance of the issues complained of for climate policy.
Recipients of this false information contacted the Stop the Silvertown Tunnel coalition, for which I had conducted research about the tunnel project. The coalition continued to press the Mayor to review the project and its compatibility with his climate policies, but he declined.
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