Gregory Nemet is a Professor at the University of Wisconsin–Madison in the La Follette School of Public Affairs. He holds the Salzwedel Distinguished Faculty Chair in Business and Regulation and is also a Vilas Distinguished Achievement Professor. He recently served as Interim Director of the school.

He teaches courses in policy analysis, energy systems, and international environmental policy. Nemet's research focuses on understanding the process of technological change and the ways in which public policy can affect it.

He received his doctorate in energy and resources from the University of California, Berkeley. His A.B. is in geography and economics from Dartmouth College.

He received an Andrew Carnegie Fellowship in 2017 and used it to write a book on how solar energy provides lessons for the development of other low-carbon technologies: “How Solar Energy Became Cheap: A Model for Low-Carbon Innovation” (Routledge 2019). He was awarded the inaugural World Citizen Prize in Environmental Performance by APPAM in 2019. He was a Lead Author for the Intergovernmental Panel on Climate Change’s 6th Assessment Report (2023).