Associate Professor of Otolaryngology, Head and Neck Surgery at UCSF in San Francisco, CA

Instructor, Division of Sleep and Circadian Disorders at Harvard Medical School

Professor of Pathology and Laboratory Medicine at Boston University, School of Medicine

Member of the Board at Harvard Belfer Center for Science and International Affairs

Astronomer, Research Associate at McDonald Observatory, University of Texas at Austin

Astronomy at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Professor, Arizona State University, School of Earth and Space Exploration in Phoenix, AZ

Astronomy at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Senior Vice President of the Moore Center for Science at Conservation International

Professor and Air Quality Extension Specialist at UC Davis

Deputy Director of Oceans and Vessels at Friends of the Earth

Faculty Affiliate, Harvard Project on Climate Agreements at Harvard Belfer Center for Science and International Affairs

Principal TR Climate in New York, NY

Senior Attorney, Public Lands Program at Center for Biological Diversity