| 1984-1987 | Studies, University of Bayreuth |
| 1988-1989 | Studies, Colorado State University, CO |
| 1989-1991 | Studies, University of Bayreuth |
| 1991 | M.Sc., University of Bayreuth |
| 1991-1992 | Project Scientist, Forest Research Institute, Christchurch, New Zealand |
| 1993-1995 | Research Analyst, WBGU - German Advisory Council on Global Change |
| 1995-2002 | Executive Officer, IGBP-BAHC and ESSP-GWSP |
| 2002-2003 | Senior Scientist, Dialogue on Water and Climate, IHE Delft |
| 2004-2007 | Project Coordinator, GLOWA Jordan River, Tübingen University |
| since 2006 | Senior Research Fellow, Potsdam Institute for Climate Impact Research, Potsdam |
| since 2006 | Senior Research Fellow, Stockholm Environment Institute |
