Vertical Crop System Piloted
The system can be powered by wind or solar energy, as well as electricity"... A new vertical method for growing crops which claims to use less land and only 5% of the water usually needed is being piloted at a Devon zoo.
The system grows plants in trays of water moving on a conveyor belt.
The company behind it, Valcent, based in Launceston, Cornwall, said it was a sustainable solution to the world’s “rapidly-diminishing resources.” …”
via BBC News