Simple theory:
In a warm climate you see people walking around feeling comfortable.
In a cold climate, the people you see are freezing.
People are not freezing in a cold climate - they have plenty of coats on. In hot climates you run out of clothes to take off - even nudists.
People are not freezing in a cold climate - they have plenty of coats on. In hot climates you run out of clothes to take off - even nudists.