Professor de Costa emigrated to Canada from Australia in 2002 to take up a Postdoctoral Fellowship in the Institute on Globalization and the Human Condition at McMaster University. Prior to joining York in 2007, he also taught at Trent University in the Department of Political Studies. He is an active member of the York community, as Chair of the President’s Sustainability Council, and acting director of Las Nubes Project. His work has focused on the institutional and cultural contexts of Indigenous-settler relations in Australia and Canada, with publications on treaty-making processes, and on truth and reconciliation. He has held three Social Science and Humanities Research Council Standard (SSHRC) grants to examine the work of the Truth and Reconciliation Commission of Canada.