The alternative to cars isn't walking in a car based city, it's a combination of any of the following modes: subways, light rail, bus rapid transit, bikeshare

The alternative to cars isn't walking in a car based city, it's a combination of any of the following modes: subways, light rail, bus rapid transit, bikeshare bikes, personally owned bikes, electric assist personal vehicles (bikes, scooters, wheelchairs), pedestrianized walkways shaded by trees, humane public space, higher density life leading to lower transit time People have non-car based cities where it's really hot. I was just in Taipei where it's 90F+ and 80%+ most of the year which has most of the things I described. And also where it's really cold. I haven't been to Copenhagen, but it's snowy for a solid three to four months of the year and people use their public transit infrastructure (cycling included) year round.