Iceland's founding fathers underwent a rapid, 1000-year genetic shift

Science Mag ^ | May 31, 2018 | Michael Price

[Vigilanteman]

According to Jared Diamond, featured in a TED talk here, few Greenlanders resettled in Iceland. Most of them just faced so many hard winters in succession that they starved to death.

I'd take him as a source over Michael Mann any day (your first link).

[SuperLuminal]

I never dignify (by reading) anything that contains phrases like “...between 870 C.E. and 930 C.E....”

[SunkenCiv]

Somewhere I thought I had a new topic to post, about the most recent dated finds showing pre-eruption (early 9th c) habitation, I’ll keep looking. Here’s the map link I had open in another window.

http://www.map-library.com/maps/maps-of-europe/maps-of-iceland/large-detailed-political-and-administrative-map-of-iceland-with-all-roads-cities-and-airports.jpg