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

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

Professor Emeritus, University of California-Santa Barbara

Professor of Geology, University of Cincinnati

Lamont-Doherty Earth Observatory of Columbia U.

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