Professor at Collège de France, CEREGE, Aix Marseille Univ, CNRS, IRD, INRA

University of California, Santa Cruz

Distinguished Professor of Biogeochemistry, UC Riverside

Professor Emeritus, Columbia University

Dusenbury Professor of Geological and Geophysical Sciences, Princeton University

Professor Emeritus, University of California-Santa Barbara

Distinguished Professor of Earth, Ocean, and Atmospheric Sciences, Oregon State …

Lamont-Doherty Earth Observatory of Columbia U.

Professor of Geology, University of Cincinnati

Professor, Department of Earth Sciences, Utrecht University, The Netherlands