Clean air zones: Could political tensions see some plans stuck in the slow lane?

In March 2021, Bath became the first city outside of London to successfully launch a charging clean air zone (CAZ). One year later and it is clear that the zone, which charges the most polluting taxis, buses, coaches and HGVs to drive through it, has helped drive a reduction in air pollution - although further measures are under consideration.

by Pippa Neill
Clean air zone sign in Bath
Bath was the first UK city outline London to introduce a clean air zone charging polluting vehicles. Photograph: Matt Cardy/Getty Images

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