Professor of Environmental Politics, David Schlosberg is Director of the Sydney Environment Institute and joins the Wide Open Air Exchange this week for a discussion of global environmental governance on reflection of 50 years of World Environment Day. It was at the United Nations 1972 Stockholm Conference on the Human Environment (pictured) that the idea for World Environment Day was proposed and the following year on 5th June 1973 that it commenced as an annual day of public outreach. Professor Schlosberg remarks on how little has changed or been accomplished with regards to the same conflicts and tensions that were evident then continuing to be present fifty years later. This conversation also covers some of the developments with environmental movements and related discourses including reference to environmental justice which is a concept that Professor Schlosberg has been influential in defining and developing as a political and social theorist. We also hear about a more recent development in thinking about "multispecies justice" which Professor Schlosberg is engaged with in collaboration with a collective of researchers at the University of Sydney.