The U.S. Supreme Court reversed a state court decision that Montana may charge rent from an electric company that owns dams on the Missouri, Madison, and Clark Fork rivers. The Montana Supreme Court held that title to the riverbeds passed to Montana when it became a state in 1889 and awarded alm...

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The court holds that the U.S. Environmental Protection Agency's (EPA's) construction of the Clean Air Act (CAA) in promulgating the revised national ambient air quality standards (NAAQS) for ozone and particulate matter (PM) effects an unconstitutional delegation of legislative power and remands the...

The court holds that the Office of Surface Mining Reclamation and Enforcement's (OSM's) denial of a surface mining permit to a company was not a taking. The company's mining plan would invade the rock strata overlying an aquifer that supplies a local community with drinking water. The court first ho...

The court denies in part and grants in part the U.S. Environmental Protection Agency's (EPA's) petition for rehearing of a decision holding that EPA's revised national ambient air quality standards (NAAQS) for ozone were not based on intelligible principles in the Clean Air Act (CAA) for setting suc...

The court holds that the U.S. Department of Energy (DOE) fulfilled its statutory obligations under the Nuclear Waste Policy Act (NWPA) to ensure that Nevada had sufficient funds enabling it to perform essential nuclear waste dump oversight activities at Yucca Mountain, Nevada. The court first holds ...

The court holds that Eleventh Amendment sovereign immunity bars an environmental group's suit against a state environmental agency challenging the U.S. Fish and Wildlife Service's grant of a migratory bird depredation permit to the state agency. The court first holds that the state environmental age...

The court holds that the Eleventh Amendment bars all but two claims brought by citizen groups in federal court against a state official accused of failing to implement, administer, enforce, and maintain a federally approved state coal mining program under the Surface Mining Control and Reclamation A...

The court holds that the Secretary of the Pennsylvania Department of Transportation and the Secretary of the Pennsylvania Department of Environmental Protection violated the Clean Air Act (CAA) by failing to implement state implementation plan (SIP)-required emission standards for the state's enhanc...

The court holds that the permit administrator and South Carolina Coastal Council's denial of an application to build a new bulkhead on beachfront property in violation of the state Coastal Zone Management Act does not constitute an unconstitutional taking of the land between the existing and propose...