A district court held that environmental and animal rights groups may challenge the constitutionality of two trespass statutes passed by the Wyoming legislature in 2015. Under the statutes—one imposing criminal liability and the other imposing civil—a person will be held liable if he or she: (1)...

The D.C. Circuit dismissed a truck association's lawsuit against EPA challenging California's tractor-trailer emission rules. The association argued that the state regulations impermissibly discriminate against out-of-state tractor trailers in violation of the dormant Commerce Clause. The associatio...

A Washington court held that the public trust doctrine applies to the protection of the atmosphere, including limits on greenhouse gas (GHG) emissions, but denied minors' petitions for stricter GHG regulations because the state agency has already commenced rulemaking. The court held that the state h...