Vehicles pass by a sign indicating the new boundary of the LEZ and ULEZ expansion on August 29, 2023 in London, England. August 29 is the first day of the London-wide Ultra Low Emission Zone (ULEZ) expansion to all of Greater London, a policy designed to reduce air pollution by imposing charges on drivers of older, more polluting vehicles. The new rules have sparked political backlash in some parts of London and neighbouring counties. (Photo by Leon Neal/Getty Images)
