The Ninth Circuit held that environmental groups may intervene in a citizen suit against the U.S. Forest Service concerning restricted motorized and mechanized vehicle use in a section of the Gallatin National Forest. In the underlying action, the citizens group argued that the Forest Service's plan...

A California court ordered the California Air Resources Board (CARB) to set aside its "functional equivalent document" that evaluates the environmental consequences of its climate change scoping plan and to enjoin implementation of the scoping plan until the agency complies with its obligati...

A district court set aside a U.S. Forest Service rule exempting the Tongass National Forest—the nation's largest—from the Roadless Area Conservation Rule. The court ruled that the exemption was arbitrary and capricious because the Forest Service failed to provide a rational basis for temporarily...

A district court, on motions for summary judgment, held that the California Department of Transportation is liable to the United States for damages caused to a lake and creek due to runoff from a state-run highway that cuts across federal property—the Presidio in San Francisco. A 1938 permit autho...

A district court held that the U.S. Forest Service's travel management plan for the Salmon-Challis National Forest violates NEPA. Environmental groups argued that the travel plan fails to ensure that motor vehicle use is properly sited and managed on the Forest in order to minimize adverse environme...

A California court issued a tentative ruling that would require the California Air Resources Board to set aside its "functional equivalent document" that evaluates the environmental consequences of its climate change scoping plan and to enjoin implementation of the scoping plan until the age...

The Ninth Circuit affirmed a lower court order denying an environmental group's motion to preliminarily enjoin the U.S. Forest Service from conducting post-wildfire logging in the Plumas National Forest. The group argued that the Forest Service violated the NFMA because it failed to ensure the viabi...

The Fourth Circuit held that the Tax Injunction Act does not bar the owner of a power plant from challenging an excise tax on carbon dioxide emissions. A lower court ruled that it lacked jurisdiction under the Tax Injunction Act because the carbon charge was a tax. But of all the carbon dioxide...

The U.S. Supreme Court held that the CAA displaces any federal common law right to seek abatement of carbon dioxide (CO2) emissions from fossil-fuel fired power plants. A group of states, private land trusts, and a city a filed suit against four power companies and the TVA claiming that their e...