Steven Barrett is the Leonardo-Finmeccanica Associate Professor of Aeronautics and Astronautics at the Massachusetts Institute of Technology. He is also Director of the Laboratory for Aviation and the Environment. Barrett is a Visiting Profesor at University College London and an investigator at the Center for Environmental Sensing and Modeling in Singapore. From 2012 to 2015 he was Associate Director of the Partnership for Air Transportation Noise and Emissions Reduction (PARTNER) — a 12 university Center of Excellence sponsored by FAA, NASA, DOD, EPA and Transport Canada, with participants from 50 industry and government organizations. Before joining MIT in 2010 he was on the faculty at Cambridge University, where he completed his undergraduate and graduate degrees in engineering. 

The main goal of Barrett's research is to advance understanding of the environmental impacts of aviation, and to develop technological, fuel-based and regulatory strategies to mitigate these impacts. His research includes work to improve understanding of the atmospheric impacts of aviation emissions, assess the environmental and economic feasability of biofuels, develop and evaluate electric aircraft propulsion technologies, and quantify the air pollution impacts of ground transportation. He has written approximately 55 archival publications and is current or former supervisor of more than 30 graduate theses. Barrett's teaching at MIT includes the undergraduate jet and rocket propulsion course, and a graduate-level course on aerospace, energy, and the environment.