Skyfarm Concept
Gordon Graff of the University of Waterloo, Ontario, designed the Skyfarm to appeal to green-minded Canadians who want to see cities taking action. His 59-story building is covered in vegetation: a hydroponic farm that would produce about 50 percent of its own needed power with an on-site biogas plant burning farm waste. The other half of the needed energy could come from city waste, according to Graff.





