The Lawyer — Stewart Elgie had already argued three cases successfully before the Supreme Court of Canada by the time he opted to intervene in the case of Hudson v. Spraytech & ChemLawn in 2001. It was his discussion of the Precautionary Principle that led to the Court’s historic decision. A University of Ottawa Common Law professor specializing in environmental law and economics, Elgie is now the associate director of the University’s Environment Institute. He received his Master’s of Law from Harvard in 1988, and is currently completing a doctorate at Yale, focusing on environmental law and economics (climate change). His current research focuses mainly on economic approaches to environmental protection.