Water Played Huge Role in Rise, Fall of Romans

Smart agricultural practices and an extensive grain-trade network enabled the Romans to thrive in the water-limited environment of the Mediterranean, a new study shows. But the stable food supply brought about by these measures promoted population growth and urbanization, pushing the Empire closer to the limits of its food resources. The research, by an international team of hydrologists and Roman historians, is published today in Hydrology and Earth System Sciences, an open access journal of the European Geosciences Union (EGU).

Stretching over three continents and persisting for many centuries, the Roman Empire was home to an estimated 70 million people. In such a vast area ensuring a stable food supply was no easy task, particularly given the variable and arid climate of the Mediterranean region. So how did the Romans maintain reliable food supplies to their cities for centuries under such challenging conditions?

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