A district court denied various states' motion to issue a preliminary injunction compelling the U.S. Army Corps of Engineers to take all available measures to prevent the emigration of invasive silver and bighead carp through the Chicago Area Waterway System into Lake Michigan. In the face of multia...

The Ninth Circuit held that FWS' biological opinion addressing a hatchery project's impact on the bull trout in the Columbia River violates the ESA. Although the hatchery project is intended to mitigate a dam's impacts on Chinook salmon, it has seriously disrupted the migration and spawning activity...

The Ninth Circuit reversed a lower court's grant of summary judgment in favor of an environmental group requiring the USDA, under FOIA, to disclose the GPS coordinates of wolf depredations to which it had responded. The district court held that the coordinates were not exempt from disclosure...

The Fifth Circuit held that a "farmout agreement," under which the owner of a federal offshore oil and gas lease transferred its rights to drill to another drilling operator, does not require the operator to bear a proportionate share of the costs of decommissioning an oil platform at the le...

A district court remanded the FWS' final rule listing the polar bear as a “threatened” species under the ESA. Shortly after FWS issued the rule, several groups filed suit, some arguing that the polar bear should have been listed as endangered, and others arguing that the bear does not qu...