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 major event. It led to the publication of 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 multilateral processes. The 20th anniversary of this event led to a Roundtable at the Law Faculty which reflected on the achievements and on the state of play of this paradigm. Discussions at the same time considered the EcoLomics concept launched 5 years ago. More narrowly defined, it focuses on the ecology-economics interactions, including poverty relief. A research essay initiated on this occasion is now published. For a condensed version see this Web site's "Presentation" section.