Professor of Soils & Global Change, University of Aberdeen

University of Bonn and Forschungszentrum Jülich GmbH

Professor of Geography, McGill University

Research Professor University of Florida

Professor, Department of Geographical Sciences, University of Maryland

Prof. Dr.

Research Scientist and Laboratory Fellow, JGCRI/PNNL

Prof. Soil, Ecosystems, and Critical Zone Science; Duke University

Pesquisador Instituto Nacional de Pesquisas da Amazônia

Professor of Soil Fertility and Waste Resource Recycling, University of Copenhagen