The clash of competing values and the role of ethics in developing environmental policies will be discussed at a daylong symposium on environmental policy at the University of California, Davis, Friday, April 4.

"Environmental Ethics and Policy: Bringing Philosophy Down to Earth" will feature two keynote addresses. Christopher Stone, environmental advocate and author of "Should Trees Have Standing? And Other Essays on Law, Morals, and the Environment," will speak at 9 a.m. Alyson Flournoy, director of the Environmental and Land Use program at the University of Florida's School of Law, will speak at 2:30 p.m.

Three panel discussions will tackle various topics: "Philosophy Meets Policy: Giving Concrete Content to Abstract Ethical Norms," at 10 a.m.; "Synergy or Conflict: The Roles of Ethics, Economics and Science in Environmental Policy Decisions," at 11:35 a.m.; and "Shaping the Future: What Our Decisions Today Mean for Tomorrow," at 3:30 p.m.

The symposium is sponsored by the UC Davis Law Review, the Environs Journal of Environmental Law and Policy, and the Environmental Law Society.

The event will begin at 8:30 a.m. in the Buehler Alumni and Visitors Center. Admission, which includes lunch, is $20 for the general public and $9 for students. For more information, visit the symposium's Web site or call (530) 757-3050.