The Fifth Circuit affirmed a lower court decision that the doctrine of res judicata bars individuals' trespass, nuisance, and negligence claims against numerous oil, coal, electric, and chemical companies for damages stemming from Hurricane Katrina. The individuals asserted that the companies' activ...

An Iowa appellate court affirmed the dismissal of a minor's petition asking the Iowa Department of Natural Resources to adopt new rules regarding the emission of greenhouse gases in the state. She first argued that the state agency acted unreasonably in denying the proposed rule because Iowa's Inali...

A California court rejected a challenge to the emissions offset component of California's greenhouse gas (GHG) cap-and-trade program promulgated by the California Air Resources Board (CARB) under the Global Warming Solutions Act of 2006. Under the program, all offsets must be additional, meaning tha...