Professor of Atmospheric Science, Colorado State University

Professor of Engineering, Computing and Physics Indiana University

former City College of New York, former-NASA/GISS

Atmospheric Scientist, SSAI, NASA Langley Research Center

Senior Scientist, NASA Goddard Space Flight Center

Distinguished Professor and Distinguished Chair in Atmospheric Chemistry, University of …

CERN & Goethe University of Frankfurt

University of Leeds

NOAA, Stockholm University, University of Washington

Senior Scientist, National Center for Atmospheric Research