Sir Crispin Tickell is a leading international authority on climate change and environmental issues, and is best known for bringing these issues to the attention of governments at the highest level, and thereby influencing policy.

He is associated with many British universities, and was the Chancellor of the University of Kent from 1996 to 2006. He is connected with a range of universities in the United States and is the holder of over twenty honorary doctorates together with many international distinguished awards. He remains an active member of numerous committees and working parties, and is presently the Director of the Policy Foresight Programme within the University of Oxford.

Most of his career was in the Diplomatic Service. He was Chef de Cabinet to the President of the European Commission (1977-80), Ambassador to Mexico (1981-83), Permanent Secretary of the Overseas Development Administration (now DFID) (1984-87), and British Permanent Representative to the United Nations (1987-90). He then became Warden of Green College (now Green Templeton) Oxford (1990-97), and Chancellor of the University of Kent (1996-2006). Among other things he was President of the Royal Geographical Society (1990-93); Chairman of the Board of the Climate Institute of Washington DC (1990-2002); Convenor of the Government Panel on Sustainable Development (1994-2000); a Trustee of the Baring Foundation (1992-2002); Trustee of the British Museum of Natural History 1992 - 2001, Trustee of World Wide Fund for Nature (UK) 1993-1999, a member of the China Council for International Cooperation on Environment and Development (1992-2006), Inaugural Senior Visiting Fellow at the Harvard University Center for the Environment (2002-2003), and Advisor At Large to the President of Arizona State University from 2002. He has been President of Tree Aid since 2007, and Honorary President of the Good Earth Trust since 2008.

He is author of the ground breaking book Climate Change and World Affairs (1977 and 1986) and Mary Anning of Lyme Regis (1996). He has contributed to many books on environmental issues (including human population, and conservation of biodiversity). He was a member of two Government Task Forces: one on Urban Regeneration, the other on Potentially Hazardous Near Earth Objects. He is a regular contributor to the printed media, frequent reviewer of books, and guest on radio and TV.

His interests go wide: they range from governance and business to climate, pre-Colombian art, and the early history of the Earth.

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