It has been six months since London’s “Ultra Low Emission Zone” expanded into the suburbs and respect for the scheme has never been lower. Four-figure fines handed to innocent motorists have undermined public support, while the disputed outcome of the scheme has earned Transport for London (TfL) a rebuke from advertising regulators. People are having their cars seized despite never driving to London, while scientists who query TfL’s claims are “silenced” for questioning the orthodoxy. All told,