They are extremely important. From the plan before you, a very significant proportion of Canada's emissions are in buildings—how we build them, operate them, heat them and cool them—and transportation. Properly empowered and properly resourced, our cities can help retrofit buildings and build public transport, which can dramatically reduce emissions.
There are other things we could do in cities. For example, the United States' President has said that he does not want to invest in electric vehicles. Could we help rebuild our auto industry, which is at risk today, through city-based thinking about greening delivery fleets, taxi fleets and other fleets? China has done this and has created a significant industry as well.