London’s low-emissions zone is the “best two-for-one offer” ever according to the city’s mayor Sadiq Khan, who has pushed ahead with the policy despite fierce opposition from drivers and political dissent in his own party.
Khan said air pollution was “an invisible killer,” during a session at the Concordia Annual Summit in New York, arguing that his ultra low-emissions zone — known as ULEZ — tackles both air pollution and climate change.
