Like clockwork every fall bring acqua alta (high water) to the canals and walkways of Venice. Seasonal high tides in this city on water rise 105 centimeters during this time of year, flooding squares and walkways. Currently the 9% of the city is underwater and the city is at “code yellow” meaning more high water is expected. November and December are traditionally the worst months for acqua alta in Venice. City residents and shopkeepers respond by raising walkways with wood planks and donning rain boots. Most Venice hotels provide Wellington-style boots for visitors to use during their stay.
The reasons for the seasonal flooding are several, according to Gazzetta del Sud: “The causes are both natural and man-made. Decades of pumping groundwater caused significant damage to the delicate foundation before the practice was called off. Weather experts say the high-water threat has been increasing in recent years as heavier rains have hit northern Italy. Other possible explanations for the phenomenon include the sea floor rising as a result of incoming silt and gas extraction in the sea off Venice undermining the islands. ”
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