London mayor Sadiq Khan has doubled-down on the “urgent need” for the Silvertown Tunnel after Labour MPs voted for it to be cancelled. At the London Labour Conference this weekend a motion against the Silvertown Tunnel was carried after 74% of London’s Labour MPs, London Assembly members and councillors backed it. The motion calls for Khan to cancel the project on environmental grounds. It adds: “If Labour are truly committed to clean air and tackling climate change there is no justification for the tunnel.” However, a spokesperson for the mayor stressed that there was an urgent need for the tunnel to be built to help alleviate congestion at the Blackwall Tunnel and consequently tackle air pollution in London.