Chemistry and Physics Department, University of Almeria

Executive Director, California Academy of Sciences

Max Planck Institute for Marine Microbiology

Research Director at Centre National de la Recherche Scientifique

Professor, University of Louvain & Stanford University

Distinguished Professor, University of Wollongong

Emory University

Retired Scientist, National Institute for Space Research - INPE, Brazil

Professor of Hydrology, Utrecht University

Chair Professor at The Hong Kong Polytechnic University