[Retric]

There where a lot of edge cases to those calculations. Including very short short commute times, specific locations within cities, background physical activity, traffic accidents etc.

Further, while 1% of cities may cross their air thresholds at their assumption levels those are the largest cities. So far more than 1% of the population would be worse off.

It's just the news glossed over the very real downsides mentioned in the study.