A district court denied public interest groups' motion for partial summary judgment in challenging an Executive Order that required federal agencies to repeal two existing rules for each new rule promulgated. The groups argued they established associational standing based on injuries that two of the...

A district court denied environmental groups' motion to preliminarily enjoin a pipeline company from continuing construction on an oil pipeline in the Atchafalaya Basin. The groups sought the injunction to prevent alleged irreparable harm to the basin, arguing that the company was violating key perm...

The Arizona Supreme Court vacated a ruling that a Native American tribe sufficiently alleged standing to bring a public nuisance claim against a resort using reclaimed wastewater to make artificial snow on the San Francisco Peaks in northern Arizona. Before the lower court, the tribe argued that the...

The Sixth Circuit held that seepage from a coal-fired power plant that reached a nearby lake violated RCRA, but not the CWA. Environmental groups argued that the chemicals being stored in coal ash ponds contaminated the surrounding groundwater, which in turn contaminated a nearby lake, in violation ...

The Ninth Circuit affirmed a district court's ruling that a Canadian smelter company that dumped several million tons of industrial waste into the Columbia River was liable for a Native American tribe's response costs. The company argued that CERCLA did not allow the tribe to recover its costs of es...