The Court held that the U.S. Environmental Protection Agency (EPA) has the statutory authority to regulate greenhouse gases (GHGs) from new motor vehicles. The case arose after private organizations petitioned EPA to begin regulating four GHGs, including carbon dioxid (CO2), under the Clean Air Act....

A district court held that EPA overstepped its statutory authority under the CWA and SMCRA when it issued guidance on Appalachian surface coal mining permits. EPA argued that the guidance was not final agency action and, thus, not subject to judicial review. But the court disagreed, holding that the...

A district court dismissed environmental groups' lawsuits challenging BLM's decision to authorize the leasing of certain public lands in northeastern Wyoming for coal mining operations. The groups, who claim that BLM failed to prepare an adequate EIS before authorizing the leasing of the tracts at i...

A district court held that a minor may bring a climate change lawsuit against the state of New Mexico under the public trust doctrine. The minor made a substantive allegation that, notwithstanding statutes enacted by the New Mexico legislature that enable the state to set air quality standards, the ...