U.S. court upholds EPA's authority to regulate greenhouse gases

A federal appeals court dismisses four sweeping lawsuits that asserted that the Clean Air Act did not give the EPA the authority to regulate greenhouse gas emissions.WASHINGTON — A federal appeals court has upheld the Environmental Protection Agency's authority to regulate gas emissions from power plants and vehicles, dealing a setback to fossil fuel industries, states and lobbying groups that have fought for years to delay taking steps to... full story