... megadroughts caused the 2200–1900 BC cascading, dry-farming, cereal agro-production crises observable archaeologically in the synchronous adaptive societal collapses, regional abandonments, and refugia habitat tracking and resettlement, from Chalcolithic Iberia to Early Bronze Greece and Levant, Akkadian Empire Mesopotamia and Jiroft, Iran.

[universityseminars.columbia.edu]

[universityseminars.columbia.edu]

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[docs.google.com]