WASHINGTON - The Supreme Court on Monday placed limits on the sole Obama administration program already in place to deal with power plant and factory emissions of gases blamed for global warming.
The justices said that the Environmental Protection Agency lacks authority in some cases to force companies to evaluate ways to reduce carbon dioxide emissions. This rule applies when a company needs a permit to expand facilities or build new ones that would increase overall pollution. Carbon dioxide is the chief gas linked to global warming.
The decision does not affect EPA proposals for first-time national standards for new and existing power plants. The most recent proposal aims at a 30 percent reduction in greenhouse gas emissions by 2030, but won't take effect for at least another two years.
The outcome also preserves EPA's authority over facilities that already emit pollutants that the agency regulates other than greenhouse gases.
Justice Antonin Scalia, writing for the court, said "EPA is getting almost everything it wanted in this case." Scalia said the agency wanted to regulate 86 percent of all greenhouse gases emitted from plants nationwide. The agency will be able to regulate 83 percent of the emissions under the ruling, Scalia said.
EPA said that, as of late March, 166 permits have been issued by state and federal regulators since 2011.
Permits have been issued to power plants, but also to plants that produce chemicals, cement, iron and steel, fertilizer, ceramics and ethanol. Oil refineries and municipal landfills also have obtained greenhouse gas permits since 2011, EPA said.