Employment and Positions:
| 2015-present | Institute Professor |
| 2006-2008 | Director, MIT Earth System Initiative Co-Director, Terrascope (www.web.mit.edu/terrascope) |
| 1993-present | Joint Appointment, Department of Biology Massachusetts Institute of Technology |
| 1976-present | Professor, Department of Civil and Environmental Engineering Division of Water Resources & Environmental Engineering Massachusetts Institute of Technology |
| 1988-1995 | MIT Director, MIT/Woods Hole Joint Program in Oceanography and Oceanographic Engineering |
| 1978-present | Visiting Scientist, Biology Department Woods Hole Oceanographic Institution |
| 1974-76 | Post-Doctoral Researcher, Biological Oceanography Scripps Institution of Oceanography |
Selected Honors and Awards:
| 2022 | Franklin Institute Laureate in Earth and Environmental Science |
| 2019 | Crafoord Prize in the Bioscienes, Royal Swedish Academy of Sciences |
| 2018 | Honorary Degree (Doctor of Science) Harvard University |
| 2016 | Jim Tiedje Award, International Society of Microbial Ecology |
| 2015 | Appointed Institute Professor, MIT |
| 2015 | Honorary Degree (Doctor of Laws) Skidmore College |
| 2015 | Reial Acadèmia de Ciències i Arts de Barcelona, Correspondent Member |
| 2014 | Killian Faculty Achievement Award, MIT |
| 2014 | Skidmore College Distinguished Alumni Award |
| 2013 | Ramon Margalef Prize in Ecology, Government of Catalonia, Spain |
| 2013 | 2011 National Medal of Science, the White House |
| 2012 | Ruth Patrick Award, American Society of Limnology and Oceanography |
| 2011 | Darbaker Prize: Botanical Society of America |
| 2010 | Agassiz Medal: National Academy of Sciences |
| 2005 | Huntsman Award for Excellence in Marine Science |
| 2004-2012 | Gordon and Betty Moore Foundation Investigator in Marine Science |
| 2003 | Elected to the National Academy of Sciences |
| 2002-2015 | Lee and Geraldine Martin Professor of Environmental Studies (Endowed Chair) |
| 1995-2002 | McAfee Professor of Engineering (Endowed Chair) |
| 1998, 2013 | Resident Scholar, Bellagio Conference and Study Center, Italy |
| 1997-1998 | Guggenheim Fellow |
| 1992 | Elected to the American Academy of Arts and Sciences |
| 1991 | Rosenstiel Award in Ocean Sciences |