Oxford is starting to charge drivers up to £10 a day to use the UK’s first zero emissions zone.
It's part of an ambitious bid to tackle air pollution.
The zone will cover a small number of streets in the city centre at first, but there are plans to expand it in future.
This episode of The Oxfordshire News Podcast brings together local council officials, health and transport experts, businesses and campaign groups to discuss what the ZEZ will look like, how it will work, and why we need it!