Professor of Psychology

Woodwell Climate Research Center

Professor of soil science. University of Wisconsin. Department of Soil Science, FD Hole Soils

Emeritus Professor, School of Science, University of Waikato, Hamilton, New Zealand

CSIRO Land and Water

Professorial Research Fellow, The University of Adelaide,

Professor, São Paulo University

Professor of Earth Sciences

University of Zurich

Professor of Soil Science, Isfahan University of Technology