- 1979[subject unknown]Corporation Member
- 1980[subject unknown]Corporation Member
- 1981[subject unknown]Corporation Member
- 1982[subject unknown]Corporation Member
- 1983[subject unknown]Corporation Member
- 1984[subject unknown]Corporation Member
- 1985[subject unknown]Corporation Member
- 1986[subject unknown]Corporation Member
- 1987[subject unknown]Corporation Member
- 1988[subject unknown]Corporation Member
- 1989[subject unknown]Corporation Member
- 1990[subject unknown]Corporation Member
- 1991[subject unknown]Corporation Member
- 1992[subject unknown]Corporation Member
- 1993[subject unknown]Corporation Member
- 1994[subject unknown]Corporation Member
- 1995[subject unknown]Corporation Member
- 1996[subject unknown]Corporation Member
- 1997Ecological Research and Global Environmental Policy: New Challenges for an Essential PartnershipFriday Evening Lecturer
- 1997[subject unknown]Corporation Member
- 1998[subject unknown]Corporation Member
- 1999[subject unknown]Corporation Member
- 2000[subject unknown]Corporation Member
- 2004Biology, Earth's Atmosphere, and Climate Change: Making Connections and Looking to the FutureFriday Evening Lecturer
- 2019Which World? - Climate Change, Climate ChoicesFriday Evening Lecturer