A district court held that a mining company violated state and federal permits when it discharged high levels of ionic pollution. Environmental groups successfully demonstrated that high conductivity discharges from two of the company's mines are causing or materially contributing to the biological ...

The D.C. Circuit denied an environmental group's petition for review challenging FERC's decision to issue a natural gas pipeline operator a certificate of public convenience and necessity to extend a natural gas pipeline in Maryland. The group argued that FERC's issuance of the conditional certifica...

The Third Circuit upheld EPA's TMDL plan for the Chesapeake Bay against challenges from farmer and home building groups. The TMDL—the largest ever developed by EPA—identifies necessary pollution reductions of nitrogen, phosphorus, and sediment across Delaware, Maryland, New York, Pennsylvania, V...

The Ninth Circuit granted in part and denied in part a petition challenging an NPDES permit authorizing oil and gas exploration facilities' discharge of 13 waste streams into the Beaufort Sea. The petition was filed by the Alaska Eskimo Whaling Commission, which represents Alaska Native villages tha...

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 accordance with the best available science. The youths had also petitioned the agency to recommend to the state le...