Cars create a large proportion of air polution that is very damaging to human and environmental health.
https://newsroom.shorthandstories.com/the-invisible-killer/
Air pollution from cars killing thousands of NZers yearly
https://www.rnz.co.nz/news/national/470457/air-pollution-from-cars-killing-thousands-of-nzers-yearly
Car tyres produce vastly more particle pollution than exhausts, tests show
Opinion | Enough About Climate Change. Air Pollution Is Killing Us Now.
https://www.nytimes.com/2022/04/19/opinion/air-pollution-fossil-fuels.html
David Wallace-Wells · Ten Million a Year: Dying to Breathe · LRB 2 December 2021
https://lrb.co.uk/the-paper/v43/n23/david-wallace-wells/ten-million-a-year?s=09
New WHO Global Air Quality Guidelines aim to save millions of lives from air pollution