Sadiq Khan’s office tried to discredit and “silence” scientists who found that his ultra-low emissions zone (Ulez) policy had little impact on pollution, The Telegraph can disclose.
In private emails seen by The Telegraph, Shirley Rodrigues, the London Mayor’s deputy for environment and energy, told Prof Frank Kelly she was “really disappointed” that Imperial College had publicised findings questioning the effectiveness of Ulez.
Prof Kelly, a director of Imperial’s Environmental Research Group, which has been paid more than £800,000 by Mr Khan’s office since 2021, agreed to issue a statement – partly written by Ms Rodrigues – saying Ulez had helped to “dramatically reduce air pollution”.
London Conservatives said the correspondence revealed an “alarmingly cosy relationship” between the Mayor’s office and the scientists it was funding, as well as a desire to “silence scientists who question the effectiveness of Khan’s policies”.
Prof Kelly’s colleagues said they stood by their research “100 per cent”, but The Telegraph understands that the fallout has had a chilling effect, leaving them unwilling to publish further work on the subject.