The conclusion of an independent UN body, the 'Brundtland Commission,' officially known as the World Commission on Environment and Development (WCED), in 1987, after three years of deliberations in Geneva and hearings in all major regions of the world, was a globally significant political milestone. Its report was published as Our Common Future, a volume which turned out to be hugely successful. The Commission's key achievement was the creation of the Sustainable Development paradigm and its promotion across numerous multilateral processes. The 20th anniversary of this publication led to a number of commemorative events, for instance in Ottawa Jim MacNeill, O.C., the Commission's Secretary General and the chief architect and lead author of the report  gave a Lecture on Sustainable Development: A New Urgency. At the Law Faculty a Roundtable (program; photo gallery) reflected on the achievements and on the state of play of this paradigm. Discussions at the same time also considered the 'EcoLomics' concept launched 5 years ago, a research essay on this question initiated on this occasion is now published.