A district court granted oil companies' motion to dismiss a lawsuit brought by the cities of Oakland and San Francisco alleging that the companies make and sell products that create a public nuisance—global-warming-induced sea-level rise—when combusted. The cities further alleged that the oil co...

The Fourth Circuit reversed a lower court's grant of summary judgment requiring EPA and West Virginia to address coal mining-related water pollution. Environmental groups argued that EPA failed to perform its nondiscretionary duty under the CWA to promulgate TMDLs for biologically impaired waters in...

A district court granted 11 states' motion to preliminarily enjoin EPA and the U.S. Army Corps of Engineers from implementing the "waters of the United States" rule, also known as the WOTUS rule or Clean Water Rule. The states demonstrated a likelihood of success on their claims that the rule was pr...