Beyond lighter skin being an adaptation to absorb more UV light for vitamin D production, there appear to be other skin adaptations that enable success for livi

Beyond lighter skin being an adaptation to absorb more UV light for vitamin D production, there appear to be other skin adaptations that enable success for living in near polar latitudes. https://www.ucsf.edu/news/2014/06/115741/human-evolution-changes-skins-barrier-set-northern-europeans-apart https://www.ucsf.edu/news/2014/06/115741/human-evolution-cha... You could argue that we have the technology to overcome these biologically hurdles, and we do, but we're talking about millions of poor refugees who would have nothing if forced to abandon their land. It's unlikely that western good will would fund them indefinitely.