Future 3D city farms?

How would you like to live in a skyscraper growing your own fruits and vegetables? A real life vertical farm in an urban setting that is sustainable, ecological and agricultural – weburbanist lists five proposals whose designers have the vision of just that! Their common goal is to create an “all-in-one eco-towers that would actually produce more energy, water (via condensation/purification) and food than their occupants would consume.”