A. Notwithstanding any other law, a state agency established under this title or title 41 shall not adopt or enforce a state or regional program to regulate the emission of greenhouse gas for the purposes of addressing changes in atmospheric temperature without express legislative authorization.
B. For the purposes of this section, "greenhouse gas" means carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, hydrofluorocarbon or perfluorocarbon.