Sierra Club, Inc. v. Exxon Mobil Corporation

District Court, N.D. California·Decided September 5, 2025·No. 3:24-cv-07288·Unknown

Opinion

SIERRA CLUB, INC., et al., Case No. 24-cv-07288-RS Plaintiffs, v. ORDER GRANTING IN PART, DENYING IN PART MOTION TO EXXON MOBIL CORPORATION, et al., DISMISS Defendants.

Plaintiffs, a group of environmental non-profits, aver that Defendant Exxon Mobil Corporation created a public nuisance by producing plastic polymers, distributing them widely throughout the California economy, and promoting them for single-use purposes by suggesting that they are disposable when in fact they are not. According to their complaint, Defendant’s conduct also violated California’s Unfair Competition Law (“UCL”) because it amounts to unlawful or unfair business practices. After the case’s initial filing in state court, Defendant removed it and a related case filed by California’s attorney general to this federal court. That attorney general’s case was subsequently remanded in a decision that Defendant has since appealed. This case remains in federal court, where Defendant now moves to dismiss the claims or, alternatively, to strike large portions of the complaint. Defendant’s motion to dismiss is denied in part and granted in part, as the complaint plausibly avers the nuisance claim but not its UCL counterpart. The motion to strike is denied, as The prior order in this case recounts the background of this dispute. In relevant part, Plaintiffs aver that Exxon is the world’s largest producer of single-use plastics that are not disposable: because they are derived from oil, they cannot be safely placed in landfills. Nor are they truly recyclable, not even via advanced methods. Given the data on recycling efficiency and the chemistry in plastic polymers, Plaintiffs allege that inevitably, single-use plastics break down into microplastics that pollute the land, air, sea, and even human bodies. These substances are harmful and last, effectively, forever. Such pollution is not only inevitable but also something Exxon knew would happen. Taking the allegations in the complaint as true and drawing inferences in favor of the non-movant, as required at this stage of the litigation, Exxon understood that single-use plastic was technically and economically impossible to dispose of safely and, undeterred, sought to profit by increasing its production. In the process, Exxon knowingly misrepresented the feasibility of disposing the plastics it produces and distributes, hiding their catastrophic impact from the public to increase its bottom line, as telling the truth might have turned single-use plastics consumers off the product. Between its production, distribution, and misrepresentations about single-use plastics, Exxon injured the California public that now contends with choked beaches and waterways wasted with wrappers. To Plaintiffs, this all amounts to private and public nuisance violations of California Civil Code §§ 3479 and 3480, as well as UCL violations. For relief, Plaintiffs seek a forced abatement injunction, an injunction against further UCL violations, compensatory damages, and attorneys fees and costs. A. Motion to Dismiss A complaint must contain “a short and plain statement of the claim showing that the pleader is entitled to relief.” Fed. R. Civ. P. 8(a)(2). While “detailed factual allegations” are not required, a complaint must have sufficient factual allegations to state a claim that is “plausible on its face.” Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009) (citing Bell Atl. v. Twombly, 550 U.S. 544, 555, 570 (2007)). A claim is facially plausible “when the plaintiff pleads factual content that allows the court to draw the reasonable inference that the defendant is liable for the misconduct alleged.” Id. (citing Twombly, 550 U.S. at 556). This standard asks for “more than a sheer possibility that a defendant has acted unlawfully.” Id. The determination is a context-specific task requiring the court “to draw on its judicial experience and common sense.” Id. at 679. A motion to dismiss a complaint under Rule 12(b)(1) of the Federal Rules of Civil Procedure challenges the court’s subject matter jurisdiction over the asserted claims. It is the plaintiff’s burden to prove jurisdiction at the time the action is commenced. Tosco Corp. v. Cmtys. For Better Env’t, 236 F.3d 495, 499 (9th Cir. 2001), overruled on other grounds by Hertz Corp. v. Friend, 559 U.S. 77 (2010); Morongo Band of Mission Indians v. Cal. State Bd. of Equalization, 858 F.2d 1376, 1380 (9th Cir. 1988). “A Rule 12(b)(1) jurisdictional attack may be facial or factual.” Safe Air for Everyone v. Meyer, 373 F.3d 1035, 1039 (9th Cir. 2004). “In a facial attack, the challenger asserts that the allegations contained in the complaint are insufficient on their face to invoke federal jurisdiction.” Id. Accordingly, when considering this type of challenge, the court is required to “accept as true the allegations of the complaint.” U.S. ex rel. Lujan v. Hughes Aircraft Co., 243 F.3d 1181, 1189 (9th Cir. 2001). By contrast, in a factual attack, “the challenger disputes the truth of the allegations that, by themselves, would otherwise invoke federal jurisdiction.” Safe Air, 373 F.3d at 1039. In resolving a factual attack on jurisdiction, the court need not presume the truthfulness of the plaintiff’s allegations and it may review evidence beyond the complaint without converting the motion to dismiss into a motion for summary judgment. Id. Once a factual challenge has been raised to the court’s subject matter jurisdiction, the party opposing dismissal must “present affidavits or any other evidence necessary to satisfy its burden of establishing that the court, in fact, possesses subject matter jurisdiction.” Id. (quoting Savage v. Glendale Union High Sch., 343 F.3d 1036, 1039 n.2 (9th Cir. 2003)). A motion to dismiss a complaint under Rule 12(b)(6) of the Federal Rules of Civil Procedure tests the legal sufficiency of the claims alleged in the complaint. See Conservation Force v. Salazar, 646 F.3d 1240, 1241–42 (9th Cir. 2011). Dismissal under Rule 12(b)(6) may be based on either the “lack of a cognizable legal theory” or on “the absence of sufficient facts alleged under a cognizable legal theory.” Id. at 1242 (internal quotation marks and citation omitted). When evaluating such a motion, the court must accept all material allegations in the complaint as true and construe them in the light most favorable to the non-moving party. In re Quality Sys., Inc. Sec. Litig., 865 F.3d 1130, 1140 (9th Cir. 2017). “[C]onclusory allegations of law and unwarranted inferences,” however, “are insufficient to defeat a motion to dismiss for failure to state a claim.” Caviness v. Horizon Cmty. Learning Ctr., Inc., 590 F.3d 806, 812 (9th Cir. 2010) (internal quotation marks and citation omitted). B. Motion to Strike Rule 12(f) permits a court to strike “any redundant, immaterial, impertinent, or scandalous matter” from a pleading. The purpose of a Rule 12(f) motion to strike is “to avoid the expenditure of time and money that must arise from litigating spurious issues by dispensing with those

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Sierra Club, Inc. v. Exxon Mobil Corporation, (N.D. Cal. 2025).

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