Ethan Shenkman

Practice Areas

Ethan Shenkman brings significant government experience to bear on his wide-ranging environmental practice at Arnold & Porter, which includes representing clients in trial court and appellate matters, and in regulatory matters before federal and state agencies. A 25-year environmental law veteran, Ethan is nationally known for his work with climate change policy and the energy transition, counseling clients on cutting-edge issues such as carbon capture and sequestration, methane regulation, renewable fuels, the phaseout of HFCs, renewable energy permitting, as well as NEPA and other climate-related litigation. Ethan has extensive appellate and trial-level litigation experience, having argued more than two dozen cases in the US Circuit Courts of Appeal and the Alaska Supreme Court. He frequently represents clients in regulatory litigation before the D.C. Circuit Court of Appeals and other courts, challenging or defending EPA decisions and programs. His 16 years of government experience include serving as a political appointee in the Obama Administration, most recently as Deputy General Counsel at the US Environmental Protection Agency and, prior to that, as Deputy Assistant Attorney General at the US Department of Justice's Environment and Natural Resources Division. He also served as a career attorney and litigator at DOJ for nine years. Ethan teaches environmental law at the Georgetown University Law Center and is a featured columnist for the Environmental Law Institute’s policy magazine, The Environmental Forum.