What made early humans migrate to extremely cold places such as Russia to Alaska?
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Climates change over long periods of time. I think Siberia used to have a much more tropical/hot climate thousands of years ago hence why people were there then. North America was under a massive ice sheet for thousands of years, now it’s massively populated. In the future no one will live where we live now (major cities) as they will be underwater. Places that are unpopulated now could be massive hubs for people in a couple of hundred years.
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