[NegativeLatency]

Your claim about northern cities is just not backed up by data, we have:

- the large amount of bike culture in Minneapolis, people ride all year long (once you're moving you'll stay pretty warm with the right gear) https://gearjunkie.com/biking/minneapolis-bike-capital

- the bike culture in Finland where it's even colder: https://www.theguardian.com/environment/bike-blog/2020/feb/0...

the difference in most of the US that it's not prioritized by local government, bike lanes don't get plowed and fill up with gravel, there's not sufficient bike infrastructure to being with etc

[eru]

And for hot places: have a look at how Singapore deal with these things.

(Yes, it's too hot to enjoy biking during the day. But public transport is great, and has aircon.)