1978 | Postdoctoral Research Associate, Scripps Institution of Oceanography, San Diego |
1978-1979 | Visiting Assistant Professor, University of Minnesota, Minneapolis |
1979-1982 | Geophysicist, Branch of Tectonophysics, Office of Earthquake Studies, U.S. Geological Survey, Menlo Park, California |
1982-1986 | Assistant Professor of Geophysics, Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA |
1986 | Associate Professor of Geophysics, EAPS, MIT, Cambridge, MA |
1989-1998 | Professor of Geophysics, EAPS, MIT, Cambridge, MA |
1993-1995 | Associate Director, MIT SeaGrant College Program, Cambridge, MA |
1995-1997 | Director, MIT/WHOI Joint Program in Oceanography and Applied Ocean Science and Engineering, Cambridge, MA |
1997-2009 | President; Chief Executive Officer, Monterey Bay Aquarium Research Institute, Menterey, CA |
1998-2009 | Professor, Department of Earth Science, UC Santa Cruz |
| Professor of Geophysics, Stanford University, Stanford, CA |
2009-2013 | Director, US Geological Survey, Reston Virginia |
2013-2013 | Visiting Research Scientist, Scripps Institution of Oceanography/IGPP, San Diego |
2013-2016 | Editor-in-Chief, Science, American Association for the Advancement of Science, Washington, D.C. |
since 2015 | Professor, Georgetown University, Washington, DC. |
since 2016 | President, National Academy of Sciences, Washington, D.C. |
1994-1996 | Scholarship holder/Student, Lester B. Pearson United World College, Victoria |
1996-1997 | National Service/Gedenkdienst, Yad Vashem Holocaust Memorial, Jerusalem |
1997-1998 | Community Service Coordinator, American International School, Cochabamba |
1998-2003 | BA, King's College, London |
2000-2001 | Exchange Year, Universidade de Minas Gerais, Belo Horizonte |
2003-2004 | Exhibition Coordinator, Künstlerhaus Wien |
2004-2005 | Programme Manager, Concordia, Chisinau |
2005-2010 | Programme Officer, Light for the World, Vienna |
2010-2011 | MSc, University of Oxford |
since 2012 | General Secretary, European Forum Alpbach, Vienna |