On the third floor of an old meat-packing plant is a humid hothouse filled with rows of greens and sprouts, even exotic white strawberries. Nearby, in large barrels swim dozens of tilapia, fish native to tropical regions.
"The Plant" is a leading example for urban vertical farming using old warehouses, where plants and fish are raised symbiotically, with a closed-loop system that uses all waste toward the production of food. Using "aquaponics", the water containing fish excrement is used to feed and fertilize the plants, which then filters the water back to the fish through a series of pipes.
Via Alice Ruxton Abler