The Harrison Symposia are products of the University of Maryland's Harrison Program on the Future Global Agenda. The Program's mission is to promote research, teaching, and public dialogue on ecological security, long-term sustainability, energy and environmental policy, and global governance — and on the ideas that influence them. Editors for the Symposia are Dennis Pirages, the Horace Harrison Professor of International Environmental Politics, and Ken Conca, Director of the Harrison Program. These symposia are to be ongoing discussions; readers are encouraged to submit comments, reactions, and suggestions, including topic suggestions, to the editors.