Edward W. Warren

Retired Partner Appeals


Ed Warren concentrated his practice in the areas of appellate litigation, administrative law, environmental law, and toxic tort litigation.

Ed joined Kirkland & Ellis in 1970 and was a partner from 1975 to 2005. He served as a member of the Firmwide Management Committee from 1980 until 1993. Ed founded the Kirkland Environmental and Appellate practice groups.

Considered one of the "first generation" of environment attorneys, Ed was selected as one of America's Leading Lawyers for Business in Environment by Chambers USA 2005. Ed was also recognized as a "Washington, D.C., Super Lawyer" from 2007–2011 and in 2013 by Super Lawyers magazine.


Thought Leadership


"Reforming Regulatory Reform: Doing Better with Less," American Enterprise Institute

Edward W. Warren & Gary E. Marchant, "More Good Than Harm: A First Principle for Environmental Agencies and Reviewing Courts," 20 Ecology L.Q. 379 (1993). See also, "Judge Leventhal's Revenge: The Courts as "Gatekeepers" of Good Science after Daubert," 1994 Public Interest Law Review 93

Judicial Proceedings - D.C. Circuit, 140 FRD 481, 566-588 (1991) (panel consisting of Justices (then judges) R.B. Ginsburg and S. Breyer and Judges Easterbrook, Wilkinson and then Judge Starr discussing the elements of effective oral advocacy


Adjunct Professor, University of Chicago (1994–present)

Adjunct Professor, Georgetown University, Administrative Law (1995)

Adjunct Professor, George Mason University, Appellate Litigation (1994–95, 1997, 1999)

Member, Board of Visitors, University of Chicago Law School

Chairman, Administrative Law Practice Group, Federalist Society

Member, American Law Institute, American Academy of Appellate Lawyers

Member, Court Appointed Scientific Experts Advisory Committee, American Association for the Advancement of Sciences


Admissions & Qualifications

  • 1971, District of Columbia
  • 1969, Illinois (retired)


  • University of Chicago Law SchoolJ.D.1969
  • Yale UniversityB.A.1966