Professor and Air Quality Extension Specialist at UC Davis

Director of Energy Research & Analysis at Union of Concerned Scientists

Principal TR Climate in New York, NY

Assistant Meat Scientist at UC Davis

Senior Research Scientist, Center for Climate Systems Research (CCSR) at Earth Institute, Columbia University

Affiliated Faculty, Center for Global Change & Sustainability at University of Utah

Atmospheric and Oceanic Sciences Professor at UCLA

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

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

Astronomer at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Traffic Research Group Leader at AAA Foundation for Traffic Safety

Professor of Data Science, Computer Engineering & Computer Science at University of New Haven

Manager, Driver Training Programs at AAA Foundation for Traffic Safety

Senior Policy Analyst at RAND Corporation

Professor of Aeronautics and Bioinspired Engineering at Caltech, Division of Biology and Biomedical Engineering

Director of the Labor Studies Program, Research Associate at National Bureau of Economic Research

Clinical Professor of Global Shifts and the Fourth Industrial Revolution at Thunderbird School of Global Management