Stephen Lezak is a writer, researcher, and advocate working at the intersection of climate politics and environmental justice.

His essays, reporting, and research appear in several academic journals and edited books, as well as The New York Times, The New Republic, Emergence, Grist, The Independent, Alaska Public Media, High Country News, Colorado Public Radio, and The Arizona Republic. His research has been covered by The Washington Post, The Financial Times, Al Jazeera, The Times (UK), and translated into Spanish, Arabic, Mongolian, Icelandic, and Indonesian.

He served as an expert reviewer for the IPCC's 6th Assessment Report and has advised two U.S. Presidential campaigns on climate policy. He was formerly a Gates Scholar at Cambridge, where he received his PhD.

He is currently based at two universities—Berkeley and Oxford—and the nonprofit Alliance for Tribal Clean Energy. He is writing a book on Indigenous climate justice for Simon & Schuster.

He lives in Berkeley, California.