first of all these were norwegian people so they knew norwegian farming practices. they did not have experience of legit arctic living like the thule did. second of all, they had contact with the mainland and relied on them. this contact was cut off and probably heavily led to them being murked. the little ice age also fucked their already shaky basis of producing food. and, lastly, there's some evidence they came in contact with the thule people and it didn't end well for them (but also some evidence of possible trade). greenland ain't ostfold bro
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