Michael Schuck is co-director of the International Jesuit Ecology Project and an associate professor of theology at Loyola University in Chicago. He is an expert on the social teachings of papal encyclicals.

Neil Ormerod is a professor of theology at Australian Catholic University in Sydney, New South Wales, Australia. He is director of its Centre for Catholic Thought and Practice. Anticipating Pope Francis’ environmental encyclical, he called it “a landmark in Catholic social teaching.”