The U.S. Supreme Court denied certiorari in a lawsuit concerning President Barack Obama's 2016 proclamation of the Northeast Canyons and Seamounts National Marine Monument off the New England coast. Commercial fishing groups had petitioned the Court to overturn the D.C.

The D.C. Circuit affirmed dismissal of a lawsuit concerning reserved water rights in the Klamath River Basin. Ranchers sued to prevent Native American tribes from exercising reserved water rights in the basin that interfered with the ranchers' ability to irrigate their land.

The D.C.

The Second Circuit affirmed dismissal of a lawsuit seeking damages from oil companies for harms caused by climate change. New York City sued the companies under state tort law to recover damages caused by the companies' legal commercial conduct in producing and selling fossil fuels.

The Second Circuit denied a petition to review two FERC orders that determined the New York State Department of Environmental Conservation (NYDEC) had waived its authority under §401 of the CWA to issue or deny a water quality certification for a natural gas pipeline project.

The Fourth Circuit affirmed summary judgment for the Army Corps of Engineers in a challenge to the Corps' issuance of a permit to construct a jetty to prevent beach erosion in North Carolina.

The Fourth Circuit affirmed summary judgment for a coal company in a lawsuit concerning the company's alleged mine pollution discharges that had been permitted under a CWA permit.

A district court granted in part and denied in part environmental groups' motion for summary judgment in a challenge to incidental take regulations promulgated by NMFS that authorized certain oil and gas exploration and production activities in Cook Inlet.

A district court granted BLM's motion for voluntary remand in a challenge to the agency's resource management plan (RMP) and EIS for oil and gas leasing in western Colorado.

A district court denied an environmental group's motion for summary judgment in a challenge to NMFS' approval of an amendment to a fishery management plan (FMP) for an Atlantic herring fishery.