That’s fair, but my understanding is that Los Angeles is an extreme case rather than a representative example of a typical American city, in part because of its unfortunate location in a valley and in part because of its sprawl. The fact that pollution is particularly hard to control there is why California is legally uniquely able to apply for its own set of automobile pollution regulations that are stricter than the rest of the country.
Los Angeles is an extreme case, but air pollution remains an urban problem. Emissions have been reduced, not eliminated.
It can still be a problem without being so visible as to limit your vision to less than a city block while the infirm non-hyperbolically suffocate to death.
That’s fair, but my understanding is that Los Angeles is an extreme case rather than a representative example of a typical American city, in part because of its unfortunate location in a valley and in part because of its sprawl. The fact that pollution is particularly hard to control there is why California is legally uniquely able to apply for its own set of automobile pollution regulations that are stricter than the rest of the country.
Los Angeles is an extreme case, but air pollution remains an urban problem. Emissions have been reduced, not eliminated.
It can still be a problem without being so visible as to limit your vision to less than a city block while the infirm non-hyperbolically suffocate to death.