Regents Professor, Earth & Environmental Sciences, U. Minnesota

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

Lamont-Doherty Earth Observatory of Columbia University

Distinguished Professor of Geosciences, University of Massachusetts

University of California, Santa Cruz

Scientist, NIOZ

Professor of Environmental Sciences, Emeritus

Professor of Geoscience, Pennsylvania State University

Professor of Geography, University of Oregon

Department of Geography, Justus Liebig University