Ep 648: Do clean air zones work?
A by-election result on the outskirts of London has turned London\u2019s Ultra Low Emissions Zone into a political football, but does it improve air quality?
For the premium Tortoise listening experience, curated by our journalists, download the free Tortoise audio app.
For early and ad-free access, subscribe to Tortoise+ on Apple Podcasts.
If you\u2019d like to further support slow journalism and help us build a different kind of newsroom, do consider donating to Tortoise at tortoisemedia.com/support-us. Your contributions allow us to investigate, campaign and explore, and to build a newsroom that is responsible and sustainable.
Hosted on Acast. See acast.com/privacy for more information.