More people are living in cities than ever before, and some believe that 66 per cent of the world’s population will be urban by 2050. As urbanization increases, encroaching onto rural areas currently used for agriculture, researchers are looking for ways to create more livable cities and boost local food supplies. On the rooftop of the Palais des congrès de Montréal, researchers are experimenting with new techniques in urban farming at the Urban Agriculture Lab. Situated on 33,500 square feet…