1983, BA (Hons) in Philosophy, Politics and Economics, Oxford; 1985, MA in Area Studies, Economics and Regional Planning, University of London; studies in Development Economics and Policy, German Development Institute, Berlin; 1997, World Bank Executive Development Programme, Harvard. 1986-88, Technical Adviser, GTZ, Pakistan/Germany; 1988-91, Policy Adviser, Office for Corporate Strategy and Development Policy, GTZ; 1991-95, Programme Coordinator, IUCN, Southern Africa; 1995-98, Senior Policy Adviser, Global Policy Unit, IUCN, Washington DC; 1998, Chief Technical Adviser, Mekong River Commission, GTZ, Viet Nam; 1998-2001, Secretary-General, World Commission on Dams, South Africa; 2001-06, Director-General, IUCN-World Conservation Union, Switzerland; 2006-16, UN Undersecretary-General and Executive Director, UNEP; 2016-17, Director, Oxford Martin School, University of Oxford; since 2017, Administrator, UN Development Programme.