Analysis of obsidian artefacts now challenge the generally accepted idea that civilisation on Easter Island collapsed due to self-induced environmental degradation - with anthropologist Prof Thegn Ladefoged from the University of Auckland.
Analysis of obsidian artefacts now challenge the generally accepted idea that civilisation on Easter Island collapsed due to self-induced environmental degradation - with anthropologist Prof Thegn Ladefoged from the University of Auckland.