- Enforcement defense: Defended client as lead in-house counsel against U.S. Government New Source Review (NSR) enforcement action. (2010, Alabama Power Co. & Duke Energy v. U.S. Environmental Protection Agency (EPA), Consolidated No. 00-12310-E (11th Cir.)).
- Enforcement defense: Challenged an EPA/Department of Justice (DOJ) action alleging NSR violations that resulted in a U.S. Supreme Court decision. (2002, EPA v. TVA, Alabama Power Co., Duke Energy & Tenn. Valley Power Assoc., No. 03-1162 (U.S.).
- Enforcement defense: Challenged an EPA/DOJ action alleging NSR violations that resulted in an ultimate successful outcome for client. (2000-2015, United States & EPA v. Alabama Power Co., No. CV-01-HS-0152-S (N. D. Ala.); Southern Division & United States & EPA v. Alabama Power Co., No. 2:01-CV-00152-VEH (N.D. Ala.)).
- Rulemaking challenge: Participated in industry and state effort to challenge the "Clean Power Plan" under Clean Air Act (CAA) Section 111(d) (2014-15, West Virginia, et al. v. EPA; Murray Energy Corp. v. EPA) (D.C. Cir.)).
- Rulemaking challenge: Participated in industry and state challenge to New Source Performance Standards rulemaking under CAA Section 111(b) for new and modified coal-fired power plants. (2012-ongoing, West Virginia, et al. v. EPA).
- Rulemaking challenge: Achieved successful appeal to the U.S. Supreme Court regarding EPA's Mercury and Air Toxics Standards rule. (2011-ongoing, Michigan v. EPA (U.S.)).
- Tort suit defense: Participated in case where the U.S. Supreme Court reversed the Second Circuit, resulting in dismissal of a public nuisance case against five utilities for their alleged contribution to global warming. This case helped end a nationwide trend toward mass tort suits in and around CO2 emissions. (2010, American Electric Power Co., et al. v. Connecticut, et al., cert. granted 10-174 (U.S.)).
- Tort suit defense: Participated in case with a unanimous three-judge panel of the Fourth Circuit overturning a Western District of North Carolina decision that had found two of TVA's power plants in Alabama and Tennessee to be a public nuisance. (2010, North Carolina v. TVA, No. 09-1623 (4th Cir.)).
- Tort suit defense: Defended against case brought by private attorneys alleging that CO2 emissions from scores of industries caused Hurricane Katrina to be stronger than average. The U.S. Court of Appeals for the Fifth Circuit lacked a quorum to rule on the case and upheld the district court's decision that the plaintiffs lacked any basis for a lawsuit because the link between emissions, global warming, and the severity of Hurricane Katrina is uncertain. The U.S. Supreme Court denied the plaintiffs' petition for a writ of mandamus to overturn the Fifth Circuit dismissal. This was one of a trio of cases that stopped the use of mass tort theories to attack energy producers. (2010, Comer v. Murphy Oil USA, 607 F.3d 1049 (5th Cir.)).
- Challenge to agency authority: Participated in joint industry effort to clarify extent of EPA's authority to regulate CO2. In the case, the U.S. Supreme Court ultimately ruled EPA has the authority to regulate CO2 with respect to automobile emissions. (2007, Massachusetts v. EPA, 548 U.S. 497).
- Georgetown University Law Center, J.D., 1986
- George Washington University, M.A., Science, Technology, and Public Policy, 1982, Scottish Rite Fellow
- University of Montevallo, B.A., 1979
- U.S. District Court, Northern District of Alabama, 1986
- U.S. Court of Appeals, Eleventh Circuit, 2000
- U.S. Supreme Court, 2007
- Alabama, 1986
- Birmingham Bar Association
- Board of the Atlantic Council, 2015