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Fighting Water with Water: To lift the city, pump the sea beneath Venice

With technology commonly used in oil fields, engineers say they could inject seawater into sandy strata deep beneath Venice, Italy, to boost the subsiding ground that now aggravates flooding there.

Venice, which is known for its architecture, bridges, and gondola-filled canals, is slowly losing ground. Over the past century, land beneath the city subsided almost 12 centimeters, and the sea level rose almost 11 cm. That net increase in water level significantly exacerbated flooding, says Giuseppe Gambolati, a hydrologist at the University of Padua in Italy.

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