528 U.S. 167 (U.S. Supreme Court 2000)
Friends of the Earth v. Laidlaw Environmental Services is a landmark Supreme Court decision at the intersection of environmental enforcement and Article III justiciability.
Do environmental groups have Article III standing to seek civil penalties in a CWA citizen suit based on members' curtailed recreational and aesthetic use of a polluted river, and is the case mooted by the defendant's subsequent compliance and facility closure?
Article III standing requires (1) an injury in fact that is concrete and particularized and actual or imminent; (2) a causal connection between the injury and the conduct complained of; and (3) a likelihood that the injury will be redressed by a favorable decision. In environmental cases, injury in fact can be shown through affidavits from individuals who use the affected area and who aver that their recreational or aesthetic interests were harmed or that they reasonably curtailed their use due to the defendant's discharges. Civil penalties payable to the government can satisfy redressability where they are likely to deter future violations that threaten continuing or recurrent harm. A case is not mooted by a defendant's voluntary cessation of challenged conduct unless it is absolutely clear that the allegedly wrongful behavior could not reasonably be expected to recur; the defendant bears a heavy burden to show mootness.
Yes. FOE had Article III standing based on members' reasonable concerns about Laidlaw's permit violations that led them to curtail use of the North Tyger River; those injuries were fairly traceable to Laidlaw's discharges and likely to be redressed in part by civil penalties that deter future violations. No. The case was not moot despite Laidlaw's subsequent compliance and facility closure, because Laidlaw failed to meet the heavy burden of showing that the violations could not reasonably be expected to recur. The Supreme Court reversed the Fourth Circuit and remanded.
Laidlaw is a cornerstone of environmental standing doctrine. It confirms that plaintiffs may establish injury in fact through diminished recreational or aesthetic use of a specific natural resource stemming from reasonable concerns about pollution, without proving actual ecological injury. It also clarifies that civil penalties can satisfy redressability by deterring future violations when violations were ongoing at filing, distinguishing Steel Co. Equally important, Laidlaw reinvigorates the voluntary cessation doctrine: regulated entities cannot moot a case simply by achieving compliance or temporarily shutting down after litigation begins. For law students, Laidlaw sits alongside Lujan and Gwaltney as essential authority on Article III standing, mootness, and the mechanics of citizen suits under the Clean Water Act.