Doctor of Philosophy, Amsterdam University, The Netherl, 1981.
Research associate Free University Amsterdam, 1982—1989. Assistant professor University Amsterdam, 1990—1991. Research associate National Institute Public Health and the Environment, Bilthoven, Netherlands, 1991—1996, Wageningen (The Netherlands) University, since 1997.
Consultant Organization of European Cooperation and Development, Paris, 1993—1996, United Nations Framework Convention on Climate Change, Geneva, 1996—1997, Bonn, Germany, since 1997. Member intergovernmental panel on climate change, since 1991.
Consultant European Socialists, Amsterdam, 1986—1987. Consultant Netherlands Socialists, 1986—1987.
Married Mieke Carolina Logger, November 4, 1983. 1 child Kim VanAmstel.