Centre for Economic and Social Studies for the Environment (CESSE)
This center, affiliated with the Universiti Libre de Bruxelles,
studies such topics as environmental economics and sustainable development.
You can read about their various activities and studies, as well as
bibliographical material on some of their papers. They also offer
material about their staff. Finally, they provide a very extensive set
of links to related sites.
http://www.ulb.ac.be/ceese/english/indexuk.htm