Deep retrofit Towers and surrounding communities for a low carbon future: Our sizeable legacy of post-war residential towers collectively produce several megatonnes of greenhouse gases each year and are among the most carbon-intensive housing types in Canada’s urban centres. However, these towers are uniquely positioned to emerge as models for low-energy retrofit. Deep retrofits can reduce their impact by as much as 80%, while also modernizing this housing typology for the next generation. Engaging in deep retrofits provides a platform…