By a 6-3 vote, the U.S. Supreme Court has held that the Environmental Protection Agency lacks authority to order reduced emissions to fight climate change.

Yes, you read that right.

In an opinion by Chief Justice John Roberts, the conservative justices said that Congress had not authorized a 2015 rule adopted by the agency aimed at shifting energy use from coal to natural gas and from fossil fuels to renewables. Climate change now joins abortion, guns and church and state in the list of high-profile, emotionally charged topics on which the justices have issued landmark conservative opinions this term.