Ryerson University paved the way for green roofs in urban cities, with its first one— The Andrew and Valerie Pringle Environmental Green Roof, going up in 2004. Since then the city of Toronto was the first city in North America to adopt a bylaw that requires all new buildings with the space, to incorporate green roofs in their design. In this episode, Amanda Cupido speaks with Professor Hitesh Doshi about his role in the creation of Toronto’s Green Roof Bylaw, and visits Ryerson’s Urban Farm to chat with farm manager Arlene Throness.