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Agency Deference and Natural Resources Damages

By David Mandelbaum on November 20, 2025
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Agean Sea

A few weeks ago, the U.S. Court of Appeals for the First Circuit decided a natural resources damages case under the Oil Pollution Act with some interesting implications for NRD claims generally. See United States v. Ernst Jacob GmbH & Co., No. 23-1969 (1st Cir. Oct. 23, 2025). Those few who read this column regularly will recall that in September I considered an NRD case under the Comprehensive Environmental Response, Compensation and Liability Act Confederated Tribes of the Colville Reservation v. Teck Cominco Metals, No. 24-5565 (9th Cir. Sept. 3, 2025). We have precious few litigated NRD cases at all, so to have two appellate decisions in two months is rare and worth noting.

Read “Agency Deference and Natural Resources Damages” on The Legal Intelligencer website. (subscription required)

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Photo of David Mandelbaum David Mandelbaum

David G. Mandelbaum represents clients facing problems under environmental laws. He regularly represents clients in lawsuits and also has helped clients achieve satisfactory outcomes through regulatory negotiation or private transactions. A Fellow of the American College of Environmental Lawyers, David teaches Superfund, and…

David G. Mandelbaum represents clients facing problems under environmental laws. He regularly represents clients in lawsuits and also has helped clients achieve satisfactory outcomes through regulatory negotiation or private transactions. A Fellow of the American College of Environmental Lawyers, David teaches Superfund, and Oil and Gas Law in rotation at the Temple University Beasley School of Law as well as an environmental litigation course at Suffolk (Boston) Law School.

Since United States v. Atlas Minerals, the first multi-generator Superfund contribution case to go to trial in 1993, Mr. Mandelbaum has been engaged in matters involving allocation of costs among responsible parties, especially under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA).  He has tried large cases and resolved others as lead counsel.  He has written, spoken, and taught extensively on the subject.  More recently he also has been engaged to assist lead counsel from this firm and others:

  • to develop cost allocation methodologies;
  • to craft expert testimony in support of a favored methodology (given a definition of “fairness,” why one methodology better tracks it than another);
  • to develop efficient case management approaches; and to assist private allocation as part of the neutral team.

Concentrations

  • Air, water and waste regulation
  • Superfund and contamination
  • Climate change
  • Oil and gas development
  • Water rights
Read more about David MandelbaumEmailDavid's Twitter Profile
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  • Posted in:
    Environmental and Climate
  • Blog:
    E2 Law Blog
  • Organization:
    Greenberg Traurig, LLP
  • Article: View Original Source

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