they have places they can get warmth. they aren't sleeping outside, they have shelters. we call them varmestue (literally warm room). they just don't have a place of their own. and i know what you're thinking, why not just build a few container houses for them? it's because there aren't that many jobs on greenland, so it's best to *ahem* concentrate the jobless greenlanders in... not camps, but houses. yes, concentration houses.
Denmark