How about we try in a community, village or town, to ban all ICE cars for one month.
All cars would be replaced by electric cars - any make or brand. Suitable charging infrastructure could be easily deployed at appropriate locations, using solar panels and PowerPacks.
For visitors from the outside, a car swap station would allow them to leave their ICE, and borrow an EV for the duration of their stay.
Measure the noise level, air pollution for one month before, and during the experiment. Interesting to measure the user perception as well.
This should be away from major external pollution sources like factories, interstate highways, etc.
It should not be too difficult to find a volunteer community for the experiment.
Need pickup trucks, vans for deliveries maybe.
Just an idea. Gives us a taste of what the future could bring.