The D.C. Circuit upheld EPA's decision to reconsider greenhouse gas emission standards for model year 2022-2025 vehicles. States and environmental groups argued that EPA violated procedural and substantive requirements imposed by the CAA and that the decision was arbitrary and capricious. The Agency...

A district court denied summary judgment in a lawsuit concerning potential harms to local trout populations from a proposed copper and silver mine in Montana. Environmental groups and a Native American tribe argued that FWS violated the ESA by using a habitat surrogate to establish the mine's author...

The Fourth Circuit granted a motion to stay FWS' issuance of a biological opinion and incidental take statement for a proposed 300-mile natural gas pipeline running through Virginia and West Virginia, and to hold in abeyance litigation concerning authorization for the pipeline in order to allow FWS ...