abstract: This paper looks at sustainability as a dynamic, continuous process of sharing and
exchanging knowledge and experiences, and of learning through action. It contributes to
this learning process by reviewing key trends and challenges that confront those
responsible for planning cities in Canada and overseas. Examples of urban planning
innovations and experimentations are drawn from a sample of cities and taken from the
perspective of the urban planner who is usually a central actor in efforts to
articulate, plan for and implement urban sustainability. The paper concludes with key
findings, and offers direction about processes, structures and methods that could
enhance the effort to achieve urban sustainability.
