The Fifth Circuit dismissed Louisiana's challenge to the Biden Administration's interim estimates on the social cost of greenhouse gas emissions. Louisiana initially sought to preliminarily enjoin the interim estimates from being used, arguing they were procedurally invalid, arbitrary and capricious...

A district court denied conservation groups' motion to intervene in a lawsuit concerning EPA's and the Army Corps of Engineers' rule defining the scope of the CWA. The groups sought intervention as of right, arguing they had "a significant, protectable interest" because they represent those who use ...

A district court denied a mining company's motion to dismiss an Indian tribe's challenge to a land exchange between the company and the Forest Service. The tribe argued that the land exchange implicated its sovereign interests, including a right under an 1854 treaty to use the land for hunting, fish...

The Tenth Circuit dismissed a petition to review NRC's grant of a temporary license for spent nuclear fuel storage near the New Mexico border. New Mexico argued NRC violated NEPA and the Nuclear Waste Policy Act, and acted ultra vires in granting the license. NRC moved to dismiss for lack of jurisdi...

The D.C. Circuit granted EPA's motion to dismiss an industry group's challenge to interim lifetime health advisories for two per- and polyfluoroalkyl substances in drinking water. The court found that the group identified alleged harm facing an indirect subsidiary of one of its members, but failed t...

A district court granted in part and denied in part a pipeline owner's motion for summary judgment in a CERCLA suit brought by the owner of land where the pipeline is located in West Virginia. The landowner alleged that the pipeline leaked and contaminated her soil and groundwater, and sought to rec...