**Morphodynamic Foundations of Sumer**

"_We propose that tidal irrigation offers a plausible jumpstarting mechanism for high-yield, diversified agriculture providing an impetus for urbanization. As access to sea was restricted by delta build-up and tides shifted with the advancing deltaic coast, intensified reliance on mercurial river regimes eventually led to the expansive fluvial irrigation network of Early Dynastic city-states._"

Giosan L, Goodman R (2025) Morphodynamic Foundations of Sumer. PLOS ONE 20(8): e0329084. https://doi.org/10.1371/journal.pone.0329084.

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