Justia Environmental Law Opinion Summaries

A multi-state utility company operating a gas-fired power plant in Washington alleged that the state's Climate Commitment Act (CCA) impermissibly discriminated against interstate commerce by allocating no-cost greenhouse gas emissions allowances only for electricity sold to Washington customers. Under Washington’s Clean Energy Transformation Act (CETA) and the CCA, utilities serving in-state customers receive no-cost allowances to offset compliance costs, while electricity exported to customers in other states does not receive this benefit. The company argued that this scheme increased costs for its non-Washington customers and potentially its shareholders, as out-of-state sales from the Washington facility required purchasing emissions allowances at auction.The United States District Court for the Western District of Washington reviewed the complaint and found that the electricity generated for export was not subject to CETA’s decarbonization mandates, distinguishing it from in-state electricity. The district court concluded that the two categories were not similarly situated for purposes of Dormant Commerce Clause analysis. The court reasoned that utilities serving Washington customers were already subject to more aggressive decarbonization requirements under CETA, justifying the allocation of no-cost allowances under the CCA. The district court dismissed the complaint with prejudice, finding no plausible claim of unconstitutional discrimination, and denied the motion for preliminary injunction as moot.On appeal, the United States Court of Appeals for the Ninth Circuit affirmed the district court’s dismissal and denial of the injunction. The Ninth Circuit held that because the regulatory schemes governing in-state and exported electricity are distinct, the emissions associated with each are not similarly situated. Therefore, Washington’s allocation of no-cost allowances did not violate the Dormant Commerce Clause. The court further held that dismissal without leave to amend was appropriate, as any amendment would be futile. The decision was affirmed. View "PACIFICORP V. SIXKILLER" on Justia Law

President Trump, without congressional approval or proper consultation, demolished the White House East Wing over three days in October 2025 to build a privately funded 90,000 square-foot ballroom. The National Park Service’s environmental assessment acknowledged that the project would cause permanent and adverse impacts on President’s Park’s historical landscape, disrupting architectural integrity and historical continuity. The National Trust for Historic Preservation, a congressionally chartered organization with longstanding ties to President’s Park, challenged the construction, citing irreparable harm to the historic, aesthetic, and cultural interests of its members.The United States District Court for the District of Columbia first denied a temporary restraining order, relying on government assurances about the timing and separability of underground and above-ground work. Later, after the National Trust amended its complaint and renewed its request, the district court issued a preliminary injunction against above-ground ballroom construction, but exempted below-ground work and measures necessary for safety and security. The court found both statutory (APA) and ultra vires claims likely to succeed, concluding that neither the President nor the National Park Service had congressional authority for such dramatic alterations.The United States Court of Appeals for the District of Columbia Circuit affirmed the district court’s modified preliminary injunction. The court held that Congress exercises exclusive control over federal property, including the White House, under the Property and District Clauses. Statutory language and appropriations history did not authorize unilateral demolition and replacement of the East Wing with a privately funded ballroom. The court ruled that the National Trust had associational standing, that the Trust was likely to succeed on the merits, and that the balance of equities and public interest favored the injunction. The court vacated its prior administrative stay and stayed its ruling for fourteen days to permit further review. View "National Trust for Historic Preservation in the United States v. NPS" on Justia Law

A transmission development company sought to build a high-voltage transmission line across three Maryland counties to address a regional electricity shortage. After receiving federal approval, the company was required to obtain a Certificate of Public Convenience and Necessity (CPCN) from Maryland's Public Service Commission (PSC) before construction. As part of the CPCN application, environmental and socioeconomic field studies needed to be conducted on properties along the proposed route. The property owners refused access for these surveys, prompting the developer to submit desktop studies instead, which the PSC's Power Plant Research Program (PPRP) found inadequate, deeming the application incomplete. The developer then sought an injunction to enter the properties for the necessary field studies.The United States District Court for the District of Maryland granted the developer's motion for a preliminary injunction, finding that the developer was likely to succeed on the merits under Maryland law, particularly Section 12-111(a) of the Real Property Article, which allows entities with eminent domain powers to access private land for surveys. The court determined that the developer had a viable claim to such power for the purposes of conducting the surveys, even though it could not condemn property until it obtained a CPCN. The court also found irreparable harm due to lost revenues from project delays, that the balance of equities favored the developer, and the public interest supported the injunction.The United States Court of Appeals for the Fourth Circuit reviewed the district court’s decision under an abuse of discretion standard. The Fourth Circuit affirmed, holding that the district court did not abuse its discretion in granting the preliminary injunction. The court concluded that the developer likely possessed the statutory right of access to conduct surveys prior to obtaining a CPCN, and that all four Winter factors for injunctive relief were satisfied. View "PSEG Renewable Transmission LLC v. Arentz Family, LP" on Justia Law

Several environmental nonprofit organizations challenged a final rule issued by the United States Environmental Protection Agency (EPA) approving California’s State Implementation Plans (SIPs) for air quality in the San Joaquin Valley. The SIPs, developed by the San Joaquin Valley Unified Air Pollution Control District and the California Air Resources Board, were intended to satisfy contingency measure requirements under the Clean Air Act for three particulate matter (PM2.5) standards. The approved measures included stricter wood burning restrictions, enhanced dust control, and expanded vehicle smog checks. However, the groups argued that these measures failed to provide sufficient emissions reductions, particularly for nitrogen oxides (NOx), and contended that the EPA improperly relied on feasibility analyses to justify the shortfall.Prior to reaching the United States Court of Appeals for the Ninth Circuit, the SIP submissions underwent notice-and-comment review by the EPA. Despite critical feedback from environmental advocates, the EPA finalized the rule, accepting the agencies’ infeasibility demonstrations and lowering the progress standard for contingency measures from its traditional requirement. This departure from stricter standards allowed approval of the SIPs even though they did not meet the longstanding emissions reduction benchmarks.The United States Court of Appeals for the Ninth Circuit reviewed the EPA’s approval under the Administrative Procedure Act’s “arbitrary, capricious, or not in accordance with law” standard. The court held that the EPA exceeded its statutory authority by reading a feasibility exemption into Section 172(c)(9) of the Clean Air Act, which does not expressly allow for such consideration. The panel concluded that the statute’s best meaning does not include a feasibility exemption and remanded the rule to the EPA without vacatur, citing the potential disruptive consequences of lacking contingency measures. The court also awarded litigation costs and attorney’s fees to the petitioners. View "COMMITTEE FOR A BETTER ARVIN V. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY" on Justia Law

Plaintiffs, Inland Empire Waterkeeper and Orange County Coastkeeper, brought a citizen suit under the Clean Water Act against Corona Clay Company, alleging violations of stormwater-permit requirements at a facility near Temescal Creek in California. The facility discharged stormwater during rainfall, potentially reaching Temescal Creek, a tributary of the Santa Ana River. Plaintiffs claimed Corona failed to implement best management practices, develop a compliant stormwater pollution prevention plan, monitor its facility, and submit accurate reports as required by the permit. Corona defended primarily by arguing it had not discharged pollutants into the creek.The United States District Court for the Central District of California initially granted partial summary judgment for Plaintiffs, but denied it on certain claims. The case proceeded to trial, where the jury found in favor of Corona. On appeal, the United States Court of Appeals for the Ninth Circuit reversed and remanded for a new trial, in part due to an intervening Supreme Court decision, County of Maui v. Hawaii Wildlife Fund, which expanded the Clean Water Act’s coverage to indirect discharges that are the functional equivalent of direct discharges. After a second trial, Plaintiffs prevailed, and the district court entered judgment and assessed penalties against Corona.Following the Supreme Court’s decision in Sackett v. EPA, which narrowed the definition of “waters of the United States” under the Clean Water Act, Corona moved to dismiss for lack of subject-matter jurisdiction and alternatively sought a new trial. The United States Court of Appeals for the Ninth Circuit held that the question of whether Temescal Creek is a “water of the United States” is a merits issue, not one of subject-matter jurisdiction, affirming the district court’s denial of the motion to dismiss. However, due to the intervening change in law announced in Sackett, the court reversed the denial of the motion for a new trial under Rule 59 and remanded for further proceedings to litigate whether Temescal Creek falls within the Clean Water Act’s scope. View "INLAND EMPIRE WATERKEEPER V. CORONA CLAY COMPANY" on Justia Law

Sonoma County amended its ordinance regulating groundwater well permits in 2023 following a prior appellate decision requiring counties to consider the public trust doctrine in such permitting. The Russian River, which runs through Sonoma and serves as habitat for threatened salmonids, is a navigable waterway protected by the public trust doctrine. Sonoma’s new ordinance established a framework for reviewing well permit applications based on their location and potential impact on public trust resources, particularly sensitive aquatic habitats. The amendment process involved extensive public engagement, technical review by experts, and adoption of conservation measures. Some categories of wells were exempt from heightened review due to low impact or overriding public interest.After the amendment, Russian Riverkeeper and California Coastkeeper Alliance filed suit in Sonoma County Superior Court, seeking to invalidate the ordinance. The superior court found Sonoma had failed both to fulfill its public trust obligations and to comply with the California Environmental Quality Act (CEQA). It issued a writ of mandate, set aside the ordinance, rescinded the claimed CEQA categorical exemptions, and suspended non-emergency well permitting.Reviewing the case, the California Court of Appeal, First Appellate District, Division Two, applied a deferential standard to the public trust claim and concluded that Sonoma’s amendment process was not arbitrary, capricious, or devoid of evidentiary support, given the data gathering and balancing of interests. Thus, it reversed the superior court’s determination on the public trust doctrine. However, the appellate court found that Sonoma failed to demonstrate substantial evidence supporting its claimed CEQA exemptions, as required by law, and affirmed the superior court’s ruling on that point. The judgment was reversed in part and affirmed in part, and the case remanded for further proceedings consistent with the opinion. View "Russian Riverkeeper v. County of Sonoma" on Justia Law

A city in Georgia experienced ongoing pollution of its property from hazardous substances, including mercury and PCBs, allegedly released as a result of historical industrial operations at a nearby plant site. Georgia Power initially owned the site and later sold it to a Honeywell predecessor, with both companies involved in activities that contributed to the contamination. Over decades, these pollutants migrated into the city’s property and surrounding waterways. In the 1990s, the Environmental Protection Agency (EPA) intervened and required the companies to investigate and remediate the site’s contamination under its oversight, culminating in a consent decree that obligated the companies to implement EPA’s official remediation plan.The city filed suit in Georgia’s Superior Court of Glynn County, asserting state-law claims for continuing nuisance and trespass, seeking damages and remediation costs. The defendants removed the case to the United States District Court for the Southern District of Georgia, arguing several grounds for federal jurisdiction, including federal officer removal under 28 U.S.C. § 1442(a)(1). The district court rejected all removal grounds and remanded the case to state court, finding that the defendants were not “acting under” a federal officer. The defendants appealed the remand order while litigation continued in state court.The United States Court of Appeals for the Eleventh Circuit held that it had jurisdiction to review the remand order, finding that the defendants’ notice of appeal triggered an automatic stay of the district court’s remand, rendering subsequent state court proceedings void for these purposes. On the merits, the court held that federal officer removal was proper because the defendants’ remediation obligations arose from and were controlled by the EPA under a consent decree. The court reversed the district court’s remand order, allowing the case to proceed in federal court. View "City of Brunswick v. Honeywell International, Inc." on Justia Law

The case involves environmental organizations seeking to enforce the Clean Air Act (CAA) against a petroleum refinery in Commerce City, Colorado, now operated by Suncor Energy. The refinery emits significant air pollution, affecting nearby residents' health and quality of life. Over twenty years ago, the Environmental Protection Agency (EPA) entered into consent decrees with Valero Energy Corporation and Conoco Phillips to enforce the CAA at these refineries. Suncor later acquired the facilities and became subject to the consent decrees. Despite ongoing EPA and Colorado enforcement actions, including compliance orders and notices of violation, the organizations allege continued violations of CAA standards and the consent decrees.The environmental groups, including GreenLatinos, Sierra Club, and 350 Colorado, filed a citizen suit in the United States District Court for the District of Colorado, alleging 28 CAA violations and violations of the consent decrees. Suncor moved to dismiss, arguing that the suit was barred by the CAA’s diligent prosecution provision, which prevents citizen suits if EPA or a state is diligently prosecuting a civil action in court for the same violations. The district court granted Suncor’s motion to dismiss under Rule 12(b)(6), holding that ongoing enforcement actions by EPA and Colorado, including the consent decrees and administrative actions, triggered the diligent prosecution bar.On appeal, the United States Court of Appeals for the Tenth Circuit addressed whether the diligent prosecution bar precluded the organizations’ claims. The court held that only standards or limitations being diligently prosecuted through a present judicial action (such as a consent decree) in court are preclusive, not merely similar standards enforced in administrative actions. The district court erred by applying the bar to claims that were only substantially similar or based on administrative actions. The Tenth Circuit reversed and remanded, instructing the lower court to apply the correct standard and to assess diligence only for claims identical to those enforced in the consent decrees. View "GreenLatinos v. Suncor Energy (U.S.A.)" on Justia Law

Enbridge sought approval to construct a tunnel beneath the Straits of Mackinac to house a new segment of its Line 5 pipeline, as part of a negotiated agreement with Michigan aimed at decommissioning the existing dual underwater pipelines. The project would replace the above-lakebed pipelines with a 30-inch pipe inside a concrete-lined tunnel, with ownership of the tunnel transferring to the Mackinac Straits Corridor Authority (MSCA) and Enbridge receiving a long-term lease. Several environmental groups and tribal communities opposed the project, citing environmental and public trust concerns, while labor and propane associations supported it.The Michigan Public Service Commission (PSC) referred the matter to an Administrative Law Judge (ALJ), who largely limited the scope of review to the tunnel project itself and excluded broader issues such as the overall public need for Line 5, its operational safety, and climate impacts beyond the new segment. The ALJ found that prior approvals in 1953 established Line 5’s public need indefinitely. The PSC affirmed the ALJ’s approach, restricted its environmental review under Michigan’s Environmental Protection Act (MEPA) to the replacement project, and approved Enbridge’s application, finding no feasible or prudent alternatives and declining to examine the common-law public trust doctrine. The Court of Appeals affirmed the PSC’s decision, applying a deferential review standard.The Michigan Supreme Court reversed, holding that courts must review agency MEPA determinations de novo, regardless of procedural origin. The Court found the PSC erred by not considering whether the tunnel project would factually and proximately cause the continued operation of Line 5 and attendant environmental harms, by inconsistently comparing alternatives, and by failing to assess impacts on public trust resources. The Supreme Court vacated the PSC’s order and remanded for further proceedings consistent with its opinion. View "In Re Application Of Enbridge Energy To Replace & Relocate Line 5" on Justia Law

A company operates a pipeline transporting oil and natural gas liquids between the United States and Canada. A portion of this pipeline crosses twelve miles of land within a Native American reservation in northern Wisconsin. In 2013, the company’s rights-of-way over certain parcels of reservation land expired. During the intervening years, the tribal band acquired ownership interests in a number of these parcels. The company continued to operate the pipeline without securing the tribal band’s renewed consent for the necessary easements. Following a breakdown in negotiations, the tribal band filed suit, alleging trespass and public nuisance. The band also pointed to the risk of a pipeline rupture near a river bend where erosion threatened pipeline safety.The United States District Court for the Western District of Wisconsin granted summary judgment for the tribal band on its trespass and unjust enrichment claims, and against the company on its breach-of-contract counterclaim. After a bench trial, the district court awarded the band restitution for past trespass, ordered future disgorgement of profits, and issued an injunction requiring the company to cease operations across the affected parcels within three years and to implement a monitoring and shutdown protocol to abate the alleged nuisance. Both parties appealed; the district court stayed the shutdown portion of the injunction while the appeal was pending.The United States Court of Appeals for the Seventh Circuit affirmed the finding that the company was trespassing on the parcels at issue and that restitution and injunctive relief are appropriate remedies. However, the court vacated the district court’s restitution calculation and the three-year shutdown deadline, remanding for a new determination of remedies that accounts for the public interest and ongoing pipeline reroute efforts. The court also held that federal statutory law displaced the band’s federal common law nuisance claim and vacated the related injunction. View "Bad River Band of the Lake Superior Tribe of Chippewa v Enbridge Energy Company, Inc." on Justia Law