Spanning a series of islands in a shallow lagoon, the city of Venice is renowned for its beauty. But that beauty comes at a cost. The lagoon's tidal patterns mix with the islands' low elevation to cause acqua alta (high water), a periodic flooding that affects most of the city. Although not a threat to human life, acqua alta impedes transportation and endangers Venice's priceless architecture—and the problem is getting worse. ...continued ...
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