The Emmett Environmental Law and Policy Clinic at Harvard Law School offers students the opportunity to practice environmental law through work on a variety of litigation, administrative, legislative, and policy projects.
The clinic works with scientists, medical professionals, nonprofit and public interest organizations, and government clients on environmental and energy issues at the federal, state, and local level. The work includes writing briefs and comment letters, drafting climate change mitigation and adaptation regulations and policies for municipalities, preparing guidance documents and manuals for non-lawyers, drafting model legislation, and preparing policy papers. The clinic develops novel strategies to address thorny environmental problems; investigates new cases; works with scientific, economic, and policy experts to help them present their views about the impacts of legal reforms; advises citizen scientists; and convenes meetings of policy-makers and regulators.
Externships
In addition to the cutting-edge projects and case work that students perform under the direct supervision of clinic faculty and staff, some students work off-campus in the offices of federal, state, or local government agencies or with non-profit environmental groups. Placements include the U.S. Department of Justice – Environment and Natural Resources Division, U.S. Department of Interior – Office of the Solicitor, the Massachusetts Attorney General’s Environmental Crimes Strike Force, Oceana, Conservation Law Foundation, the Clean Air Task Force, the Environmental Defense Fund, and Alternatives for Community and Environment (ACE).
Past Clinic Projects
How to Register
The Environmental Law and Policy Clinic is offered in the Fall and Spring semesters. The clinic is also offered in the Winter term but requires an application for winter enrollment (due October 31, 2023). You can learn about the required clinical course component, clinical credits and the clinical registration/application process by reading the course catalog description and exploring the links in this section.
Meet the Instructors

Andrew Mergen
Faculty Director; Visiting Assistant Clinical Professor of Law
Andrew Mergen is Deputy Chief of the Appellate Section of the Environment & Natural Resources Division of the U.S. Department of Justice. He has presented arguments in all thirteen federal courts of appeals and in several state Supreme Courts. He has also assisted in the briefing of numerous U.S. Supreme Court cases. In 2009, he was detailed to the White House Counsel’s Office to assist on the confirmation of the Honorable Sonia Sotomayor as Associate Justice of the Supreme Court.
Mr. Mergen has taught at American University, the Villanova University, the Catholic University of America, and most recently at the William S. Richardson School of Law at the University of Hawaii-Manoa. Mr. Mergen has written on federal water rights, A Misplaced Sensitivity: The Draft Opinions in Wyoming v. United States, 68 Colo. L. Rev. 683 (1997) (with Sylvia F. Liu); on energy development on public lands, Surface Tension: The Problem of Federal Private Split Estates, 33 Land & Water L. Rev. 419 (1998); and, more recently, on climate change and the Endangered Species Act, The Role of Climate Change in ESA Listing Decisions, 53 Rocky Mt. Min. L. Fdn. 67 (2016) (with Murray Feldman).
Mr. Mergen’s research interests include Environmental and Natural Resources Law, Administrative Law, and Environmental Legal History. He is a graduate of the University of Wisconsin-Madison and the George Washington University School of Law.
Staff Members
Rosa Hayes | Clinical Fellow | rhayes@law.harvard.edu |
Jacqueline Calahong | Faculty and Staff Assistant | jcalahong@law.harvard.edu |
In the News
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Clinic Hiring for Staff Attorney Position
Job Summary The Emmett Environmental Law & Policy Clinic at Harvard Law School is inviting applications for a full-time Staff…
February 14, 2023
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Welcome to the Clinic’s New Faculty Director Andrew Mergen
January 3, 2023 – The Clinic welcomes Andrew Mergen as a Visiting Assistant Clinical Professor of Law and Faculty Director…
January 3, 2023
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Emmett Clinic Publishes Paper on how the Massachusetts EFSB Can Integrate Environmental Justice into its Review Process
Image: Mystic Generating Station in Everett, Massachusetts. Credit: Fletcher6 / Creative Commons July 2022 – The Emmett Environmental Law &…
July 15, 2022
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Emmett Clinic and Native American Rights Fund Publish Guidebook for Alaska Natives to Put Land in Trust
July 13, 2022—Today, the Emmett Environmental Law & Policy Clinic and Native American Rights Fund (“NARF”) published Putting Land in…
July 13, 2022