The Ninth Circuit vacated and remanded a lower court decision that environmental groups lacked standing to challenge BLM's decision to sell oil and gas leases in Montana. Below, the groups…

A district court largely dismissed claims challenging California's Low Carbon Fuel Standard, a collection of regulations promulgated by the California Air Resources Board to implement…

A Washington court ordered the state's environmental agency to reconsider its denial of youths' petition asking the agency to adopt rulemaking to limit greenhouse gas (GHG) emissions in…

The D.C. Circuit, in light of the U.S. Supreme Court's decision in Utility Air Regulatory Group v. EPA, No. 12-1146, 44 ELR 20132 (2014), amended a prior decision in which it upheld four EPA…

A Massachusetts court dismissed residents' lawsuit seeking a declaratory judgment that the state's environmental agency failed to comply with §3(d) of the Global Warming Solutions Act (…

A California appellate court held that the San Diego Association of Governments (SANDAG) failed to adequately consider greenhouse gas emissions impacts in violation of the California Environmental…

A California appellate court held that San Diego County's adoption of a climate action plan violated the California Environmental Quality Act (CEQA). Pursuant to the California Global Warming…

A district court vacated the government's approval of on-the-ground mining exploration activities in a part of western Colorado's North Fork Valley and enjoined the intervening mining…

The D.C. Circuit dismissed teenagers' lawsuit against the federal government for failing to cap greenhouse gas emissions. Invoking the federal question statute, 28 U.S.C. §1331, as the basis…

A district court held that Minnesota's New Generation Energy Act, which establishes energy and environmental standards related to carbon dioxide emissions, constitutes impermissible…