​Boris Johnson calls for mass scrapping of diesel cars

Christofer Lloyd
Totally Thames festival
Totally Thames festival


Dominic Lipinski/PA Wire

The Mayor of London, Boris Johnson, is calling for the scrappage of diesel cars after research suggests that diesel models are more polluting than petrol rivals – even though they typically emit less CO2 than petrol equivalents per kilometre, which is what current road tax levels are based on.