David HayesDavid J. Hayes
Executive Director

David J. Hayes is a nationally recognized environmental, energy and natural resources lawyer who leads the State Energy & Environmental Impact Center at NYU School of Law. Hayes is an Adjunct Professor at NYU School of Law, and a former visiting lecturer at Stanford Law School, consulting professor at Stanford's Woods Institute for the Environment, and research scholar at Stanford's Precourt Institute for Energy. He previously served as the deputy secretary and chief operating officer at the Department of the Interior for Presidents Bill Clinton and Barack Obama (1999-2001; 2009-2013). Hayes also is a member of Pacific Gas & Electric Company’s Sustainability Advisory Council; the board of directors for the Coalition for Green Capital; and the advisory council of Stanford’s Bill Lane Center for the American West; and chair of the US Wildlife Trafficking Alliance. Before and between his service in the Clinton and Obama administrations, Hayes worked in the private sector as a partner and global chair of the Environment, Land & Resources department at Latham & Watkins, an international law firm. Hayes graduated summa cum laude from the University of Notre Dame and received his JD from Stanford Law School, where he served as notes editor of the Stanford Law Review.

Elizabeth KleinElizabeth Johnson Klein
Deputy Director

Elizabeth Klein is an experienced attorney who specializes in clean energy, climate change, and environmental issues. She served at the Department of the Interior during both the Clinton and Obama administrations, most recently as Interior’s associate deputy secretary as well as principal deputy assistant secretary in the Office of Policy, Management and Budget. Prior to her most recent government service, Klein was an attorney at Latham & Watkins specializing in energy and environmental law issues, and a law clerk at the Department of Justice’s Environment and Natural Resources Division and its Environmental Enforcement Section. Before becoming an attorney, she worked in various government relations and communications roles, including for the National Park Foundation and the Democratic Governors Association. Klein graduated summa cum laude with a degree in economics from the George Washington University and received her JD from American University’s Washington College of Law, where she was president of the Environmental Law Society and senior articles editor of the Sustainable Development Law & Policy journal, graduating summa cum laude and Order of the Coif. 



Chris Moyer is a skilled communicator with a track record of raising the profile of elected officials, organizations and issues. He has significant and diverse communications experience, including most recently as the deputy communications director for California Attorney General Xavier Becerra. He also worked for the Hillary for America 2016 presidential campaign in Ohio. Prior to joining the Clinton campaign, he oversaw communications for the American Gaming Association, and before that, spent four years on Capitol Hill working for U.S. Senate Majority Leader Harry Reid and U.S. Senator Kay Hagan. Moyer started his career in the press shop of former Boston Mayor Tom Menino. Chris is a New Hampshire native and a cum laude graduate of Boston University.



Hampden Macbeth is an attorney with experience in climate, environmental, and energy law and policy. He previously served as an institute fellow at the Georgetown Climate Center, where he worked with states on Clean Power Plan implementation issues and on other policy strategies for cleaning their energy sectors. During law school, he was a law clerk at the Environmental Protection Agency’s Office of Enforcement and Compliance Assurance and the Department of Justice’s Environment and Natural Resources Division and its Environmental Defense Section. Before law school, he served as a senior legislative assistant for Congressman Adam Schiff, handling an issue portfolio that included the environment and energy policy. Macbeth graduated cum laude from Occidental College with a BA in Diplomacy and World Affairs (international relations) and received his JD from Georgetown University Law Center, where he was managing editor of the Georgetown Environmental Law Review and graduated cum laude.


program Assistant

Brittany Whited has focused her career on the intersection of climate change and public health. Brittany comes to the Center most recently from the World Health Organization where she consulted on the impacts of climate change on public health in the Americas. Brittany spent over one year as an ORISE Fellow at the Environmental Protection Agency in their Climate Change Division, and has also worked at The George Washington University on heat-related illnesses and deaths research. She has a Masters in Public Health from George Washington University. Her Master’s thesis reviewed the role of science in climate-related litigation since 1990 and she is a co-author on recent publication in Science on the topic. Brittany graduated cum laude with a Bachelor of Science in Environmental Health from the University of Wisconsin - Eau Claire.