
In March 2015 the Mayor of London described the capital’s Ultra Low Emission Zone (Ulez) as “an essential measure to help improve air quality in our city, protect the health of Londoners, and lengthen our lead as the greatest city on Earth… Together we can ensure everyone who lives, works in, or visits our city has the cleanest possible air to breathe.”
The Mayor of London who spoke those words wasn’t Sadiq Khan but his predecessor, Boris Johnson. It was also Johnson who agreed a new settlement for Transport of London (TfL) while in office that ended a £700m a year Treasury grant, making it one of the few transport networks in a major Western city not to receive any central government funding at all.