The D.C. Circuit held that carbon emissions from gas-burning power plants should have been considered in federal regulators’ review of a Florida natural gas pipeline. Environmental groups and landowners challenged a FERC decision to approve the construction and operation of three new interstate na...

The Tenth Circuit rejected EPA's decision to deny an oil company's request for an exemption from the blending requirement under the Renewable Fuel Standards Program of the CAA. In 2005, Congress amended the CAA to require refiners and importers to blend biofuels into gasoline to cut down on greenhou...

The Ninth Circuit held that the FAA did not act arbitrarily when it forewent a full EIS on a third runway at the Hillsboro Airport in Hillsboro, Oregon. In 2005, the airport, the busiest in the state of Oregon, developed a plan to deal with traffic that included the addition of a third runway. Since...

The D.C. Circuit held that EPA overstepped its authority under the CAA when it banned the use of hydrofluorocarbons (HFCs) in products. In 2015, EPA issued a rule that restricted the manufacture of products containing HFCs. EPA based this decision on its authority to regulate "ozone depleting substa...

The Sixth Circuit held that the Forest Service's rules regarding recreational boating on Crooked Lake in Michigan's Sylvania Wilderness exceeded the agency's power as applied to private property owners. Congress gave the Forest Service authority to regulate any use of Crooked Lake and nearby lakes �...