University of Utah

Environment Canada

Department of Earth Sciences, Utrecht University, The Netherlands

Professor of Geology and Biology, University of Utah

University of Bristol

Dusenbury Professor of Geological and Geophysical Sciences, Princeton University

Gewooon Hoogleraar KU Leuven

Professor Titular - Laboratório Ecologia Isotópica - Cena-USP

Regents' Professor, Director of Ecoss, Northern Arizona University

Professor, Department of Archaeology, Simon Fraser University