Michael B. Gerrard, Andrew Sabin Professor of Professional Practice at Columbia Law School, teaches courses on environmental law, climate change law, and energy regulation, and founded and directs the Sabin Center for Climate Change Law. He also chaired the faculty of Columbia University’s Earth Institute from 2015 to 2018.

From 1979 through 2008, he practiced environmental law in New York, most recently as partner in charge of the New York office of Arnold & Porter. Upon joining the Law School faculty in 2009, he became the senior counsel to the firm. His practice involved trying numerous cases and arguing many appeals in federal and state courts and administrative tribunals; handling the environmental aspects of numerous transactions and development projects; and providing regulatory compliance advice to a wide variety of clients in the private and public sectors.

A prolific writer in environmental law and climate change, Gerrard twice received the Association of American Publishers’ Best Law Book award for works on environmental law and brownfields. He has written or edited thirteen books, including Global Climate Change and U.S. Law, the leading work in its field (second edition published in 2014, co-edited with Jody Freeman), and the 12-volume Environmental Law Practice Guide. His most recent book is Legal Pathways to Deep Dacarbonization in the United States (2019, coedited with John Dernbach).