360 Green ~
Oh, aside of Vertical Green, there is another great idea which i will call it 360 green, but it takes quite alot of energy to operate, i dun know if the fiber glass and mirror can help !! This is called Cylindrical Hydroponic Designs by OmegaGarden.. This is based on the concept of Urban farming like as Vertical Green Farm Project, to increase the green product within the urban area..
However, the carbon footprint of this machine seems a bit high (esp. the watering mechanism..) (I know this project is not env. aimed)