I explained why clean-air zones like ULEZ (but also LTNs) are often anti-democratic and imposed despite public opposition or inconvenience. They are also often a stealth tax. The evidence on, for example, air quality or car congestion, is too often dodgy, or at least contested.
🐦🔗: https://n.respublicae.eu/Fox_Claire/status/1638249245877719040