University of East Anglia

Columbia University Earth Institute, Adjunct Professor, former-GISS, former-NASA

Newberry Professor, Lamont-Doherty Earth Observatory (LDEO), Columbia University

Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA

Professor of Geology and Geophysics, Yale University

Head of Klaus Tschira Laboratory of Scientific Dating, Mannheim, Germany

NASA - GISS - Goddard Institute for Space Studies GSFC Emeritus

Professor of Physics of the Oceans, Potsdam University

Lamont-Doherty Earth Observatory of Columbia University

Professor Emeritus, Columbia University