That's a very theoretical point of view. How to maintain those pipes? In two or three years, they will be full of small mollusks and other seafood.
That's a very theoretical point of view. How to maintain those pipes? In two or three years, they will be full of small mollusks and other seafood.
There are many sewer and storm outlets just like this all around the world already
Only the outside. The inside will be full of brine. Once the salinity exceeds a certain value nothing but extremophile bacteria can survive in it.