The Tenth Circuit denied environmental groups' petition to review an EPA rule that partially approved Colorado's SIP to reduce ozone pollution. The groups sought vacatur of the approval, arguing the Agency violated the CAA by approving the reasonable further progress and motor vehicle emissions budg...
In an unpublished opinion, the Ninth Circuit affirmed in part and reversed in part a district court ruling in a lawsuit over a logging project in Kootenai National Forest. Conservation groups sued the Forest Service and FWS, arguing the project's approval violated the ESA, NEPA, and the National For...
The U.S. Supreme Court held, 5-4, that the CWA does not authorize EPA to include "end-result" provisions in NPDES permits, in a lawsuit concerning the Agency's issuance of a renewal permit for the city of San Francisco that added two such requirements. The city petitioned for review, arguing the req...
A district court granted the Army Corps of Engineers' motion to dismiss a developer's challenge to the Corps' 2012 jurisdictional determination over certain wetlands in Virginia. The developer challenged the Corps' significant nexus finding between the wetlands and the Northwest River, arguing the s...
A district court denied environmental groups' motion to preliminarily enjoin a tornado recovery operations project in Hoosier National Forest. The groups argued the Forest Service improperly excluded the project from NEPA's research and reporting requirements and began implementing the project befor...
A district court granted EPA's and OMB's motion to dismiss a challenge brought by California youth against certain agency policies for allegedly undervaluing the lives of children in cost-benefit analyses and thus harming them by failing to resolve the climate crisis. The youth argued the policies v...
The Ninth Circuit reversed a district court's dismissal of a challenge to the U.S. Air Force's decision to engage in hazardous waste disposal through open burning/open detonation (OB/OD) operations at Tarague Beach on Guam. A nonprofit group argued the Air Force failed to comply with its environment...
A district court granted the state of Utah's and an oil and gas company's motions to dismiss a challenge to four leasing decisions made from 2018 through 2019, under which BLM issued 145 oil and gas leases on public lands throughout eastern Utah. An environmental group argued BLM violated NEPA and t...
A district court granted summary judgment for a number of states in a challenge to a 2024 CEQ rule that revised regulations for implementing the procedural provisions of NEPA, including amendments in the Fiscal Responsibility Act. The states argued the rule violated NEPA and the APA by exceeding CEQ...
A district court granted the state of California's motion to dismiss a challenge to two California laws—SB 253, Climate Corporate Data Accountability Act, and SB 261, Greenhouse Gases: Climate-Related Financial Risk—that require large businesses to publicly disclose their greenhouse gas emission...