Air quality can certainly be impacted by density, but neighbourhoods that aren't car dependent promote exercise by giving people the ability to lak or bike wehn going out instead of driving (which can also help the overall air quality).
Maybe the cyclists don't like the stop signs that the path frustratingly has but the road does not? Around that stop there are two within a few hundred metres, and frequently stopping (or slowing down fot a rolling stop) makes riding slower and more tiring. That's probably not nearly the entire motivation, though.
It seems to also factor in leaks of NG, which is much more potent as a greenhouse gas than CO2.
The vast majority of those subsidies (rebates, sales tax exemption, government procurement of EVs) you linked don't seem like they would apply to exported vehicles. This suggests exports would indeed be very price competitive, wouldn't it?
This sounds like you're describing "The Handmaid's Tale", which is not what this thread is about.
The US Supreme Court then reversed the Ninth Circuit ruling. You're quoting the background that gives context to the case in the lixned article.
When I was in undergrad, a new friend in my program asked if he could inspect my elbow. I said sure, and he probed my elbow with his fingers thoroughly for a couple of minutes. He then told me it was very well structured.