One of North America's leading theologians, he is known for bringing a uniquely Canadian approach to his field. Professor Emeritus at McGill University's Faculty of Religious Studies, he is a prolific author who is perhaps most celebrated for a three-volume series in which he examines Christian beliefs in light of the North American cultural and historical experience. He has also written popular books about Christianity for a wider audience. Passionate about social justice and environmental ethics, he is a sought-after guest speaker and lecturer in Canada and abroad.