The Ninth Circuit held that the CAA does not preempt a California air pollution district rule requiring development sites to reduce the amount of pollutants they emit. CAA §209(e)(1) only preempts those standards or requirements relating to the control of emissions from "new" construction e...

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 an energy company's current and ongoing construction of a coal-fired power plant, for which no maximum achievable control technology (MACT) determination has ever been made, violates CAA §112(g). In ordinary circumstances, there would be no question as to whether...

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...

The Ninth Circuit held that the National Marine Fisheries Service (NMFS) violated the Marine Mammal Protection Act (MMPA), but not NEPA, when it authorized Idaho, Oregon, and Washington to kill up to 85 California sea lions annually at the Bonneville Dam in order to protect salmon in the Columbia Ri...

The D.C. Circuit denied medical waste trade associations' petition for review challenging EPA's performance standards for new and existing hospital/medical/infectious waste incinerators (HMIWI). The associations argued that the data set EPA used to establish the standards was flawed. But EPA's ...

A district court held that the U.S. Forest Service's Public Wheeled Motorized Travel Management Decision for the Eldorado National Forest violated the ESA and the National Forest Management Act. The decision designates specific roads and trails within the forest as open to public motor vehicle ...

The Seventh Circuit denied environmental groups' petitions challenging EPA's approval of revisions to Wisconsin's new source review program. In 2002, EPA changed the rules that determine when polluters need permits in order to modify existing facilities—and, if they need permits, what restrictions...