Director, Robert A. Levy Center for Constitutional Studies, Cato Institute
Thomas Berry is the director in the Cato Institute’s Robert A. Levy Center for Constitutional Studies and editor in chief of the Cato Supreme Court Review. Before joining Cato, he was an attorney at Pacific Legal Foundation and clerked for Judge E. Grady Jolly of the U.S. Court of Appeals for the Fifth Circuit. His academic work has appeared in NYU Journal of Law and Liberty, Washington and Lee Law Review Online, and Federalist Society Review. His popular writing has appeared in The Wall Street Journal, National Law Journal, Investor’s Business Daily, National Review Online, and The Hill Online. He has testified before the U.S. Senate, and his work has been cited by the U.S. District Court for the District of Columbia.
Berry holds a J.D. from Stanford Law School, where he was a senior editor on the Stanford Law and Policy Review and a Bradley Student Fellow in the Stanford Constitutional Law Center. He graduated with a B.A. in Liberal Arts from St. John’s College, Santa Fe.
Attorney, Separation of Powers, Pacific Legal Foundation
Josh Robbins is an attorney in Pacific Legal Foundation’s separation of powers group. He litigates cases to defend the structural protections of the U.S. and state constitutions that guarantee liberty for all Americans. He wants to help ensure Americans receive due process from the government when their lives and property are at stake and that the laws are made by our democratically elected representatives and not by unaccountable bureaucrats.
As an attorney in private practice, Josh saw firsthand how the government can embroil people (and even large corporations) in years-long legal battles. At PLF, he works to provide those without great resources an opportunity to vindicate their right to a properly ordered government, which is the right of all Americans.
Prior to joining PLF, Josh was an associate at a large law firm where he litigated cases in federal and state courts. He clerked for the Honorable Jerry E. Smith of the United States Court of Appeals for the Fifth Circuit in Houston.
Josh earned a B.A. in economics and international studies from Yale University and a J.D. from the University of Virginia School of Law. While at UVA, he served as an articles editor for the Virginia Law Review. He lives in Alexandria, Virginia, and enjoys hiking, swimming, and attending Washington Nationals games.
Josh is a member of the bar only in the states of Virginia and D.C.
Tazewell Taylor Professor of Law and William H. Cabell Research Professor, William & Mary Law School
Jonathan H. Adler joined the William & Mary law faculty as the Tazwell Taylor Professor of Law and William H. Cabell Research Professor in 2025. Prior to joining the faculty, he was the inaugural Johan Verheij Memorial Professor of Law and the founding Director of the Coleman P. Burke Center for Environmental Law at the Case Western Reserve University School of Law.
Professor Adler is the author or editor of seven books, including Climate Liberalism: Perspectives on Liberty, Property and Pollution (Palgrave, 2023), Marijuana Federalism: Uncle Sam and Mary Jane (Brookings Institution Press, 2020), Business and the Roberts Court (Oxford University Press, 2016) and Rebuilding the Ark: New Perspectives on Endangered Species Act Reform (AEI Press, 2011).
His articles have appeared in publications ranging from the Harvard Environmental Law Review and Yale Journal on Regulation to the Wall Street Journal, New York Times, and Washington Post. He has testified before Congress a dozen times, and his work has been cited in the U.S. Supreme Court. A 2024 study identified Professor Adler as the seventh most cited legal academic in administrative and environmental law from 2019 to 2023.
Professor Adler is a contributing editor to Civitas Outlook and a regular contributor to the popular legal blog, The Volokh Conspiracy. A regular commentator on constitutional and regulatory issues, he has appeared on numerous radio and television programs, ranging from the PBS Newshour and National Public Radio to the Fox News Channel and Entertainment Tonight.
Professor Adler is a senior fellow at the Property & Environment Research Center in Bozeman, Montana. In 2018, Professor Adler was elected to membership in the American Law Institute and helped co-found the organization Checks and Balances. In 2024, Professor Adler was appointed a public member of the Administrative Conference of the United States.
Professor Adler clerked for the Honorable David B. Sentelle on the U.S. Court of Appeals for the District of Columbia Circuit.
Director of the Program on Environmental and Energy Law, Assistant Dean of Adjunct Faculty Affairs, and Fellow in Environmental Law, American University Washington College of Law
William Snape has litigated a number of environmental and related cases in federal court, and argued Center for Biological Diversity v. Interior at the DC Circuit, which rejected the federal government’s plan for oil and gas drilling off the coast of Alaska in part because of climate change concerns. Snape is the author of numerous articles on natural resource issues, including the book Biodiversity and the Law published by Island Press. His public interest work currently focuses upon environmental justice advocacy at the state level, serving as board general counsel to the United States Climate Action Network, and litigating an active federal docket under the Freedom of Information Act (FOIA). In Summer 2020, Snape was named director of WCL’s Program on Environmental and Energy Law (PEEL).
Vice President of Law & Policy, Property and Environment Research Center
Jonathan Wood is vice president of law and policy at the Property and Environment Research Center (PERC). An attorney, Jonathan has litigated environmental and property-rights cases in the Supreme Court of the United States, federal and state appellate courts, and trial courts across the country. His writing has appeared in the Wall Street Journal, Washington Post, National Review, Reason, and other outlets. And his research has been published in journals such as Environmental Law Reporter, Yale Journal on Regulation Notice & Comment, Pace Environmental Law Review, and California Western Law Review.
Prior to coming to PERC, Jonathan was a senior attorney at Pacific Legal Foundation, where he litigated cases concerning the Endangered Species Act, Clean Water Act, and other federal environmental laws. He was co-counsel for forest landowners in Weyerhaeuser Co. v. U.S. Fish and Wildlife Service, in which the Supreme Court ruled unanimously that private land could not be arbitrarily regulated as critical habitat under the ESA. He also led a successful effort to reform regulation of threatened species to better align the incentives of private landowners with the interests of rare species.
Jonathan has testified before several congressional committees on wildlife conservation and endangered species topics. He has also appeared on national television and radio, including NPR’s All Things Considered, C-Span’s Washington Journal, Stossel, Fox News, and Hill.TV.
Jonathan has a law degree from the New York University School of Law, a masters degree in economic policy from the London School of Economics, and a bachelor’s degree in economics from the University of Texas. He is on the executive committee for the Federalist Society’s Environmental Law and Property Rights Practice Group and a steering committee member for the Environmental Law Institute’s Emerging Leaders Initiative.
Professor of Law, UC Davis School of Law; Senior Fellow, California Environmental Law and Policy Center; and Director, UC Davis Center for Watershed Sciences
Professor Börk graduated with Distinction and Pro Bono Distinction from Stanford Law School in 2009, and completed his PhD dissertation in Ecology at UC Davis in September 2011. He received the Shapiro Family Award in 2011 as the Outstanding PhD Graduate in Ecology at UC Davis. He clerked for Tenth Circuit Chief Judge Mary Beck Briscoe, U.S. District Court Judge Julie Robinson, and Judge Janice Karlin on the U.S. Bankruptcy Court for the District of Kansas.
Professor Börk graduated Phi Beta Kappa from the University of Kansas in 2002, and was named a Truman Scholar in 2001 and a Switzer Fellow in 2010. Professor Börk's publications run the gamut from the definitive text on the history and application of California Fish and Game Code Section 5937 to a hatchery and genetic management plan for spring-run Chinook salmon. Professor Börk is currently examining legal and ethical issues in ecological restoration. His past work has focused on the management of guest species, those invasive species that managers invite in and make comfortable, and on the evolution of law via administrative actions. He is currently working on local governance issues in ecosystem management.
Vice President of Law & Policy, Property and Environment Research Center
Jonathan Wood is vice president of law and policy at the Property and Environment Research Center (PERC). An attorney, Jonathan has litigated environmental and property-rights cases in the Supreme Court of the United States, federal and state appellate courts, and trial courts across the country. His writing has appeared in the Wall Street Journal, Washington Post, National Review, Reason, and other outlets. And his research has been published in journals such as Environmental Law Reporter, Yale Journal on Regulation Notice & Comment, Pace Environmental Law Review, and California Western Law Review.
Prior to coming to PERC, Jonathan was a senior attorney at Pacific Legal Foundation, where he litigated cases concerning the Endangered Species Act, Clean Water Act, and other federal environmental laws. He was co-counsel for forest landowners in Weyerhaeuser Co. v. U.S. Fish and Wildlife Service, in which the Supreme Court ruled unanimously that private land could not be arbitrarily regulated as critical habitat under the ESA. He also led a successful effort to reform regulation of threatened species to better align the incentives of private landowners with the interests of rare species.
Jonathan has testified before several congressional committees on wildlife conservation and endangered species topics. He has also appeared on national television and radio, including NPR’s All Things Considered, C-Span’s Washington Journal, Stossel, Fox News, and Hill.TV.
Jonathan has a law degree from the New York University School of Law, a masters degree in economic policy from the London School of Economics, and a bachelor’s degree in economics from the University of Texas. He is on the executive committee for the Federalist Society’s Environmental Law and Property Rights Practice Group and a steering committee member for the Environmental Law Institute’s Emerging Leaders Initiative.
Deputy Director, Regulatory Studies Center, George Washington University
Will Yeatman is deputy director of the GW Regulatory Studies Center. A lawyer, he has spent almost two decades working on federal regulatory policy, with an emphasis on administrative law.
Yeatman has testified many times before Congress and state legislatures, and his scholarly work has appeared in such academic journals as Georgetown Law Journal, Administrative Law Review, and the (forthcoming) Catholic University Law Review. His popular writing has appeared in The Wall Street Journal, Foreign Policy, and Bloomberg.
Yeatman came to the RSC from the Pacific Legal Foundation. Previously, he had been at the Cato Institute’s Center for Constitutional Studies and the Competitive Enterprise Institute. From 2004 to 2006, he served as a Peace Corps volunteer in the Kyrgyz Republic.
Yeatman holds a BA in environmental sciences from the University of Virginia, an MA in international studies from the Denver University Graduate School of International Studies, and a JD from the Georgetown University Law Center. He is a member of the Washington, DC Bar.
Professor of Law, UC Davis School of Law; Senior Fellow, California Environmental Law and Policy Center; and Director, UC Davis Center for Watershed Sciences
Professor Börk graduated with Distinction and Pro Bono Distinction from Stanford Law School in 2009, and completed his PhD dissertation in Ecology at UC Davis in September 2011. He received the Shapiro Family Award in 2011 as the Outstanding PhD Graduate in Ecology at UC Davis. He clerked for Tenth Circuit Chief Judge Mary Beck Briscoe, U.S. District Court Judge Julie Robinson, and Judge Janice Karlin on the U.S. Bankruptcy Court for the District of Kansas.
Professor Börk graduated Phi Beta Kappa from the University of Kansas in 2002, and was named a Truman Scholar in 2001 and a Switzer Fellow in 2010. Professor Börk's publications run the gamut from the definitive text on the history and application of California Fish and Game Code Section 5937 to a hatchery and genetic management plan for spring-run Chinook salmon. Professor Börk is currently examining legal and ethical issues in ecological restoration. His past work has focused on the management of guest species, those invasive species that managers invite in and make comfortable, and on the evolution of law via administrative actions. He is currently working on local governance issues in ecosystem management.
Vice President of Law & Policy, Property and Environment Research Center
Jonathan Wood is vice president of law and policy at the Property and Environment Research Center (PERC). An attorney, Jonathan has litigated environmental and property-rights cases in the Supreme Court of the United States, federal and state appellate courts, and trial courts across the country. His writing has appeared in the Wall Street Journal, Washington Post, National Review, Reason, and other outlets. And his research has been published in journals such as Environmental Law Reporter, Yale Journal on Regulation Notice & Comment, Pace Environmental Law Review, and California Western Law Review.
Prior to coming to PERC, Jonathan was a senior attorney at Pacific Legal Foundation, where he litigated cases concerning the Endangered Species Act, Clean Water Act, and other federal environmental laws. He was co-counsel for forest landowners in Weyerhaeuser Co. v. U.S. Fish and Wildlife Service, in which the Supreme Court ruled unanimously that private land could not be arbitrarily regulated as critical habitat under the ESA. He also led a successful effort to reform regulation of threatened species to better align the incentives of private landowners with the interests of rare species.
Jonathan has testified before several congressional committees on wildlife conservation and endangered species topics. He has also appeared on national television and radio, including NPR’s All Things Considered, C-Span’s Washington Journal, Stossel, Fox News, and Hill.TV.
Jonathan has a law degree from the New York University School of Law, a masters degree in economic policy from the London School of Economics, and a bachelor’s degree in economics from the University of Texas. He is on the executive committee for the Federalist Society’s Environmental Law and Property Rights Practice Group and a steering committee member for the Environmental Law Institute’s Emerging Leaders Initiative.
Deputy Director, Regulatory Studies Center, George Washington University
Will Yeatman is deputy director of the GW Regulatory Studies Center. A lawyer, he has spent almost two decades working on federal regulatory policy, with an emphasis on administrative law.
Yeatman has testified many times before Congress and state legislatures, and his scholarly work has appeared in such academic journals as Georgetown Law Journal, Administrative Law Review, and the (forthcoming) Catholic University Law Review. His popular writing has appeared in The Wall Street Journal, Foreign Policy, and Bloomberg.
Yeatman came to the RSC from the Pacific Legal Foundation. Previously, he had been at the Cato Institute’s Center for Constitutional Studies and the Competitive Enterprise Institute. From 2004 to 2006, he served as a Peace Corps volunteer in the Kyrgyz Republic.
Yeatman holds a BA in environmental sciences from the University of Virginia, an MA in international studies from the Denver University Graduate School of International Studies, and a JD from the Georgetown University Law Center. He is a member of the Washington, DC Bar.
Professor of Law, UC Davis School of Law; Senior Fellow, California Environmental Law and Policy Center; and Director, UC Davis Center for Watershed Sciences
Professor Börk graduated with Distinction and Pro Bono Distinction from Stanford Law School in 2009, and completed his PhD dissertation in Ecology at UC Davis in September 2011. He received the Shapiro Family Award in 2011 as the Outstanding PhD Graduate in Ecology at UC Davis. He clerked for Tenth Circuit Chief Judge Mary Beck Briscoe, U.S. District Court Judge Julie Robinson, and Judge Janice Karlin on the U.S. Bankruptcy Court for the District of Kansas.
Professor Börk graduated Phi Beta Kappa from the University of Kansas in 2002, and was named a Truman Scholar in 2001 and a Switzer Fellow in 2010. Professor Börk's publications run the gamut from the definitive text on the history and application of California Fish and Game Code Section 5937 to a hatchery and genetic management plan for spring-run Chinook salmon. Professor Börk is currently examining legal and ethical issues in ecological restoration. His past work has focused on the management of guest species, those invasive species that managers invite in and make comfortable, and on the evolution of law via administrative actions. He is currently working on local governance issues in ecosystem management.
Vice President of Law & Policy, Property and Environment Research Center
Jonathan Wood is vice president of law and policy at the Property and Environment Research Center (PERC). An attorney, Jonathan has litigated environmental and property-rights cases in the Supreme Court of the United States, federal and state appellate courts, and trial courts across the country. His writing has appeared in the Wall Street Journal, Washington Post, National Review, Reason, and other outlets. And his research has been published in journals such as Environmental Law Reporter, Yale Journal on Regulation Notice & Comment, Pace Environmental Law Review, and California Western Law Review.
Prior to coming to PERC, Jonathan was a senior attorney at Pacific Legal Foundation, where he litigated cases concerning the Endangered Species Act, Clean Water Act, and other federal environmental laws. He was co-counsel for forest landowners in Weyerhaeuser Co. v. U.S. Fish and Wildlife Service, in which the Supreme Court ruled unanimously that private land could not be arbitrarily regulated as critical habitat under the ESA. He also led a successful effort to reform regulation of threatened species to better align the incentives of private landowners with the interests of rare species.
Jonathan has testified before several congressional committees on wildlife conservation and endangered species topics. He has also appeared on national television and radio, including NPR’s All Things Considered, C-Span’s Washington Journal, Stossel, Fox News, and Hill.TV.
Jonathan has a law degree from the New York University School of Law, a masters degree in economic policy from the London School of Economics, and a bachelor’s degree in economics from the University of Texas. He is on the executive committee for the Federalist Society’s Environmental Law and Property Rights Practice Group and a steering committee member for the Environmental Law Institute’s Emerging Leaders Initiative.
Deputy Director, Regulatory Studies Center, George Washington University
Will Yeatman is deputy director of the GW Regulatory Studies Center. A lawyer, he has spent almost two decades working on federal regulatory policy, with an emphasis on administrative law.
Yeatman has testified many times before Congress and state legislatures, and his scholarly work has appeared in such academic journals as Georgetown Law Journal, Administrative Law Review, and the (forthcoming) Catholic University Law Review. His popular writing has appeared in The Wall Street Journal, Foreign Policy, and Bloomberg.
Yeatman came to the RSC from the Pacific Legal Foundation. Previously, he had been at the Cato Institute’s Center for Constitutional Studies and the Competitive Enterprise Institute. From 2004 to 2006, he served as a Peace Corps volunteer in the Kyrgyz Republic.
Yeatman holds a BA in environmental sciences from the University of Virginia, an MA in international studies from the Denver University Graduate School of International Studies, and a JD from the Georgetown University Law Center. He is a member of the Washington, DC Bar.
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Commandeering for Conservation?
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What’s The “Harm?" ESA Rulemaking after Loper Bright
Karrigan Börk, Jonathan Wood, Will Yeatman
In April, the Fish and Wildlife Service proposed to rescind a regulation defining the Endangered...
What’s The “Harm?" ESA Rulemaking after Loper Bright
Karrigan Börk, Jonathan Wood, Will Yeatman
In April, the Fish and Wildlife Service proposed to rescind a regulation defining the Endangered...
What’s The “Harm?" ESA Rulemaking after Loper Bright
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