A district court held that the doctrines of res judicata and collateral estoppel bar individuals' trespass, nuisance, and negligence claims against numerous oil, coal, electric, and chemical companies for damages stemming from Hurricane Katrina. The individuals asserted that the companies' activitie...

A district court upheld the OSM's approval of amendments to West Virginia's federally approved SMCRA program that pertain to cumulative hydrologic impact assessments. The amendments delete the program's definition of “cumulative impact” and add a definition for “material damage to the ...

The Fourth Circuit affirmed a lower court decision dismissing an environmental group's lawsuit challenging the OSM's approval of two amendments to West Virginia's surface coal mining regulations. One amendment repeals the definition of "cumulative impact" in the state's cumulative hydrologic imp...

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A district court held that Washington state must establish reasonably available control technology (RACT) for greenhouse gas emissions. Based on its plain language, the RACT provision contained in Washington's federally approved SIP is not discretionary and requires the state's agencies to estab...

A California court held that the California Air Resources Board's "functional equivalent document" and scoping plan to reduce greenhouse gases as it relates to cap and trade complies with the California Environmental Quality Act. The court therefore lifted its May 20, 2011, peremptory writ of man...

The court affirms in part and reverses in part a district court decision upholding U.S. Department of the Interior (DOI) regulations that govern damage to land, structures, and certain water supplies caused by mining subsidence. The court first holds that a regulation establishing a rebuttable presu...