AMERICAN ELEC. POWER CO. v. CONNECTICUT
AMERICAN ELECTRIC POWER COMPANY, INC., ET AL., PETITIONERS
CONNECTICUT ET AL.
Supreme Court of United States.
Argued April 19, 2011.
Decided June 20, 2011.
GINSBURG, delivered the opinion of the Court.
We address in this opinion the question whether the plaintiffs (several States, the city of New York, and three private land trusts) can maintain federal common law public nuisance claims against carbon-dioxide emitters (four private power companies and the federal Tennessee Valley Authority). As relief, the plaintiffs ask for a decree setting carbon-dioxide emissions for each defendant at an initial cap, to be further reduced annually. The Clean Air Act and the Environmental Protection Agency action the Act authorizes, we hold, displace the claims the plaintiffs seek to pursue.