Director of UNU-EHS, Co-Chair WBGU, Prof. Political Science

Southern Taiwan University of Science and Technology

University of Leeds, School of Politics and International Studies

Professor for Geography at University of Vechta

Purdue University Northwest

Postdoctoral Researcher, University of Technology Sydney

Associate Professor of Chemistry, Al-Qalam University Katsina

Operations Research Professor, Lisbon Polytechnic Institute

McMaster University

Durban University of Technology