“Sustainability involves our duty to others, including future generations,” says Distinguished Professor and Environmental Law Center Co-Director John C. Dernbach, adding, “The growth in that understanding is one of the reasons I come away from Rio more hopeful than I might otherwise.” Dernbach spent eleven days in Rio de Janeiro, Brazil beginning June 12th for events related to the United Nations Conference on Sustainable Development, Rio+20. The conference brought together world leaders and thousands of participants from governments, the private sector, non-governmental organizations, and other groups to discuss and examine sustainability and mark the 20th anniversary of the 1992 United Nations Conference on Environment and Development in Rio de Janeiro and the 10th anniversary of the 2002 World Summit on Sustainable Development in Johannesburg. Read more about Dernbach's experience in Rio here