Unpopular opinion (largely discredited in anthropology circles): cold weather encourages resourceful behaviour and improves human cooperation. In climates where you can survive winter outdoors, homelessness is not as detrimental to continued existence. Three walls and no roof is fine in a slum in Florida, but harder to pull off in Minneapolis.
This societal coordination which is required to survive winter leads to more orderly and more socialist civilizations. Because hairless apes have no business being in that climate. So it is human ingenuity that is selected for -- and that includes development of systems of cooperation.
If I extrapolate, our space faring descendants will face much bigger hurdles, but ideally will develop even better systems to deal with it.
Bonus picture. Me doing arctic exploration.