Flood

Two antique dams on Washington state's Elwha River are set to be demolished.

On the Elwha, a New Life When the Dam Breaks

A huge dam-removal project will reveal sacred Native American lands that have been flooded for a century

"If global warming's worst predictions come true in 100 years," says Fabio Carrera, "the real issue is preserving Venice as a liveable place—not stopping the occasional tide from coming in."

Venice's Uncertainty

A new floodgate system should protect the city from high tides—unless climate change interferes

This SeaWiFS view reveals the colourful interplay of currents on the sea's surface

Evidence for a Flood

Sediment layers suggest that 7,500 years ago Mediterranean water roared into the Black Sea

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