StewartRichard Stewart
Faculty Director
University Professor; John Edward Sexton Professor of Law

Vanderbilt Hall 411F
(212) 998-6170

Professor Richard Stewart is recognized as one of the world’s leading scholars in environmental and administrative law. Prior to joining the faculty, Stewart served as Byrne Professor of Administrative Law at Harvard Law School and as a member of the faculty of the Kennedy School of Government at Harvard. He has served as assistant attorney general in charge of the Environment and Natural Resources Division of the US Department of Justice and chairman of the Environmental Defense Fund. Stewart directs the NYU Climate Finance Project, which addresses new legal and regulatory institutions and tools for international transfer of public and private investment resources to developing countries. The project has published a pioneering book on the subject and held workshops and training sessions at the Copenhagen and Cancun climate meeting. It is currently developing a proposal for a Global Climate Finance Registry to promote accountability and effectiveness in global climate finance. He recently published a major book on US nuclear waste law regulation and policy. Together with Michael Oppenheimer and Bryce Rudyk, Stewart also heads the Guarini Center’s research on “Alternative Structures for Climate Action,” which explores innovative institutional strategies for global climate protection that are complementary to, but also distinct from, the existing UN framework.

Recent Publications and Blog Posts:

FrancisPaul Francis ’80
Distinguished Senior Fellow

Paul Francis is a Distinguished Senior Fellow of the Guarini Center on Environmental and Land Use Law at NYU Law School, having previously served in a senior policy capacity under the last three Governors of New York State.  Mr. Francis was the Director of Agency Redesign and Efficiency and the Vice-Chair of the Spending and Government Efficiency (SAGE) Commission under Gov. Andrew Cuomo of New York. He completed his State service when the SAGE Commission issued its final report on February 12, 2013. Mr. Francis had previously served as Gov. Eliot Spitzer’s Director of the Budget for 2007 and as the Director of State Operations under Gov. David Paterson until the end of the 2008 legislative session.  During 2005-2006, Mr. Francis was the Policy Director for the Spitzer 2006 gubernatorial campaign and served in a similar capacity for Andrew Cuomo in 2010.

Before entering politics and government, Mr. Francis spent 25 years in the private sector.  He practiced law for two large New York firms from 1980-1986.  In 1986, he joined the investment banking division of Merrill Lynch & Co. as an associate.  He left Merrill Lynch as a Managing Director in 1993 to become the Chief Financial Officer of Ann Taylor Stores Corporation. In 1997, Mr. Francis became the sixth employee and founding Chief Financial Officer of  From 2001-2004, Paul was the Managing Partner of the Cedar Street Group, a venture capital firm that invested in early stage technology companies. During the time between serving in the Paterson and Cuomo administrations, Mr. Francis was the Chief Operating Officer of the Financial Products Division of Bloomberg L.P.

Mr. Francis is the Chairman of the Utility Debt Securitization Authority created in 2013 in connection with a securitization related to the Long Island Power Authority and is a voting member of the board of the New York State Health Foundation. He is also on the Board of Trustees of NYU Law School, from which he graduated in 1980.

Recent Publication:

photoMatt Jacobs
Program Affiliate

Matt Jacobs works as a Program Affiliate for the Guarini Center on Environmental and Land Use Law and as a Policy & Financial Analyst for the Cedar Street Group, LLC.  He received his B.A. in Environmental Studies from Lehigh University with a focus on renewable energy.  Matt is interested in increased deployment of renewable energy through the use of innovative financing vehicles.  Additionally, he is focused on policy options that strive to achieve the twin goals of greenhouse gas abatement and increased resiliency.

KeohaneNathaniel Keohane
Adjunct Professor of Law
Vice President, Environmental Defense Fund


Nat is a Vice President at Environmental Defense Fund, a leading nonprofit advocacy organization based in New York, with a focus on EDF’s climate change work across the organization’s programs. He returned to EDF from the White House, where he was Special Assistant to the President for Energy and Environment in the National Economic Council and Domestic Policy Council. In that capacity, he developed and coordinated Administration policy on a range of environmental and energy-related issues, both domestically and internationally.

From 2007 to 2010, he was Director of Economic Policy and Analysis and then Chief Economist, where he helped to shape the organization’s advocacy for market-based environmental policies across a range of program areas, including climate, air quality, energy, water, ecosystems and oceans. From 2001, he was an Assistant and then Associate Professor of Economics at the Yale School of Management. His research in environmental economics has appeared in prominent academic journals. He is the co-author of Markets and the Environment (Island Press, 2007), and co-editor of Economics of Environmental Law (Edward Elgar, 2009).

He teaches the Climate Change Policy seminar at the law school.

mandel-bBenjamin Mandel
Energy Law & Policy Fellow
Wilf Hall 320P
(212) 992-6197

Ben is an Energy Law & Policy Fellow at the Guarini Center, focusing on market structure and regulation of New York’s electric power sector. Before joining NYU, Ben worked at Lawrence Berkeley National Laboratory, where he studied urban heat island mitigation techniques including cool roofs and pavements. Previously, Ben was an Assistant Economist at the Federal Reserve Bank of New York, working to fortify the US banking sector following the financial crisis of 2008-2009. Ben holds an MPP and an MS in Energy & Resources, both from UC Berkeley, and AB degrees in Mathematical Economics and Hispanic Literature & Culture from Brown University.

Recent Publications and Blog Posts:

OppenheimerMichael Oppenheimer
Visiting Professor of Law
Albert G. Milbank Professor of Geosciences and International Affairs, Princeton University


Michael, a regular visiting professor, is the Albert G. Milbank Professor of Geosciences and International Affairs in the Woodrow Wilson School and the Department of Geosciences at Princeton University. He is the director of the Program in Science, Technology and Environmental Policy at the Woodrow Wilson School and faculty associate of the Atmospheric and Ocean Sciences Program, Princeton Environmental Institute, and the Princeton Institute for International and Regional Studies. In the spring term, he usually teaches the Global Environmental Law, Science and Governance seminar.  The seminar has both NYU Law and Princeton students, and classes alternate between the campuses.

He is currently a coordinating lead author on the Intergovernmental Panel on Climate Change’s Fifth Assessment Report.

Recent Publications and Blog Posts:

_MG_8835Bryce Rudyk (LL.M ’08)
Climate Program Director
Adjunct Professor of Law

Wilf Hall 320M
(212) 992-8105

Bryce was the Executive Director at the Center from 2011 to 2014 and is currently the Climate Program Director. He is also an adjunct professor teaching the International Environmental Law Clinic. For 2014, he is on leave from the Center to be the Legal Advisor to the Chair of the Alliance of Small Island States (AOSIS) in the United Nations Climate Change Negotiations. AOSIS is the negotiating group of the 44 small island developing states around the world.

He has been at the Center since 2009, initially as a Research Fellow and then Director of the Climate Finance Project. His research focuses on the global institutional structure for climate finance and alternative transnational institutions for global climate action. He has an LL.M in International Law from NYU Law, a J.D from the University of Toronto, and a B.Sc in Biology from McMaster University. He practiced private international law and was a lobbyist for higher education before moving to international environmental law.

Recent Publications and Blog Posts:

SchragJonathan Schrag
Senior Fellow in Energy
Wilf Hall 311

Jonathan Schrag is a Senior Fellow in Energy at the Guarini Center.  At NYU, his work focuses on regulatory and financial innovation for distributed energy resources and the decentralization of electrical infrastructure.

Previously, Jonathan served as Deputy Commissioner for Energy at the Connecticut Department of Energy and Environmental Protection where he developed the Connecticut Microgrid Pilot Program and helped to implement the Clean Energy Finance Investment Authority.  As the first deputy commissioner for energy in a newly formed department, he led the integration of energy, climate and environmental policy.

From 2008 to 2011, Jonathan was the first Executive Director of the Regional Greenhouse Gas Initiative, a 10 state cap-and-trade program to reduce GHG emissions from the electric power sector which has produced over $1.5 billion dollars in clean energy investment.

Jonathan has served as a member of the U.S. Commodities and Futures Trading Commission Advisory Panel on Energy and Environmental Markets, an Advisor to the Western Governors’ Association Zero-Emission Energy Task Force, and a Vice President of the New York Association for Energy Economics. In 1994 he was a Volunteer in Service to America (VISTA) in East Austin, Texas.

Jonathan received his undergraduate degree with honors from Harvard University and studied the business history of electrical companies in Latin America as a PhD candidate in the Harvard University Department of History. He received a Fulbright Scholarship to Mexico in 1999.

Recent Publications and Blog Posts:

spiegelfeldDanielle Spiegel-Feld ’10
Executive Director
Wilf Hall 312
(212) 998-6146

Danielle is the Executive Director at the Guarini Center. Previously, she served as a research fellow in “Climate Change and the Law” at the University of Copenhagen’s Faculty of Law where she studied interactions between international trade law and domestic environmental policy. While in Copenhagen, Danielle lectured in courses on international energy law, international environmental law, and the law of the World Trade Organization. Danielle received her J.D. from NYU, where she was a Notes Editor of the Environmental Law Journal, a participant in the NRDC Environmental Law Clinic, and a research assistant to Dean Emeritus Richard Revesz. Danielle received her B.A. from the University of Pennsylvania, summa cum laude, and is admitted to practice law in New York.

Recent Publications and Blog Posts:

WymanKatrina Wyman
Energy Program Director; Environmental Law LLM Program Director
Sarah M. Herring Professor of Law

Born and raised in Canada, Katrina Wyman has a BA, MA, and LLB from the University of Toronto and an LLM from Yale Law School. Before joining NYU School of Law in 2002, she was a research fellow at the University of Toronto Faculty of Law in 2001-02. Wyman’s research interests relate primarily to property and natural resources law and policy. She has undertaken case studies of the evolution of emissions trading, and property rights in fisheries and taxi licenses. She also has worked on the Endangered Species Act and the policy and legal responses to the possibility that climate change might prompt large-scale human migration. Wyman serves as the director of the Environmental LLM program at NYU Law.

Recent Publications and Blog Posts: