The cities of Venice, Italy and New Orleans, Louisiana have a tremendous problem in common. They are both built on river sediments and they are both slowly sinking into the sea.
Venice (the old city) is currently virtually exactly at sea level (and sinking) while New Orleans is already around 7 feet BELOW sea level (and sinking) and has had to be protected by levees surrounding it which keep the Mississippi River and a large lake and the water from the Gulf of Mexico out.
In 2002, I realized that it was actually possible to essentially hydrostatically ‘jack up’ the massive region of Venice and the surrounding area, at a rate of about one inch (2,5 cm) per month, by using river water sent down into selective water wells to develop hydrostatic pressure down there.
If a thousand gallons of water from local rivers is sent down every minute, in each of thirty standard water wells, that water is INCOMPRESSIBLE. In a five year period of this (natural) process, we should lift Venice and the entire region by about FIVE VERTICAL FEET, thereby totally solving Venice’s problem.
The process is NATURAL (river water falling down wells to develop pressure) and amazingly cheap and easy to do! C Johnson, Theoretical Physicist, Physics Degree from Univ of Chicago, 16 Aug 2016