A Colorado court struck down a city's ban on hydraulic fracturing. In 2012, voters passed an amendment to the city charter that bans fracking and the storage and disposal of fracking waste within city limits. The oil and gas industry challenged the ban, arguing that it was preempted.

A New York court dismissed a lawsuit seeking to compel the state to finalize its supplemental EIS on hydraulic fracturing.

A New York court dismissed mineral rights owners' lawsuit seeking to compel the state to finalize its supplemental EIS on hydraulic fracturing.

An Illinois appellate court upheld a state plan requiring state utilities to purchase power from a coal-fueled, near-zero emissions electric power plant.

The First Circuit vacated and remanded a lower court decision dismissing environmental groups' CWA claims against the operators of four hydroelectric dams along the Kennebec River.

A district court upheld a CWA §404 permit issued by the U.S. Army Corps of Engineers for the construction of a large marine transfer station near the upper east side of New York City.

The Fourth Circuit affirmed a lower court decision denying an environmental group's motion to intervene in a poultry farmer's lawsuit against EPA.

The Supreme Court of Iowa held that an Iowan who works for an environmental nonprofit group may sit on the state's Environmental Protection Commission and may vote to adopt rules which she actively supports both professionally and personally.

A California court held that the public trust doctrine protects navigable waterways from harm caused by groundwater extraction.

The Ninth Circuit upheld EPA's approval of Nevada's SIP for regional haze. In the SIP, Nevada provided reasonable progress goals for attaining natural visibility conditions at the Jarbridge Wilderness Area in remote northeastern Nevada, the state’s only Class I federal area.