Stephen Lezak is a writer, researcher, and advocate focused on climate politics and environmental justice.

He is based at two universities—Oxford and Cambridge—and the non-profit Rocky Mountain Institute. 

His essays, reporting, and research appears in several academic journals and edited books, as well as The New Republic, Grist, The Independent, High Country News, Colorado Public Radio, Emergence, and The Arizona Republic.

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 lives in Alaska and England.