Like another commenter in this thread I suspect it's mostly due to banning cars ... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		gniv 11 months ago \| parent \| context \| favorite \| on: Air pollution fell substantially as Paris restrict... Like another commenter in this thread I suspect it's mostly due to banning cars with Crit'air > 2.

user777777 11 months ago [–]

No, it’s not just that. There’s a reduction in traffic. Traffic is the biggest cause of pollution. Even if the exhaust is “ clean “ (it’s not) there’s also tire dust and brake dust

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact