A divided Supreme Court agreed Tuesday to halt enforcement of President Barack Obama's sweeping plan to address climate change until after legal challenges are resolved.
The surprising move is a blow to the administration and a victory for the coalition of 27 mostly Republican-led states and industry opponents that call the regulations "an unprecedented power grab."
By issuing the temporary freeze, a 5-4 majority of the justices signaled that opponents made strong arguments against the rules. The high court's four liberal justices said Tuesday they would have denied the request for delay.
The Obama administration's plan aims to stave off the worst predicted impacts of climate change by reducing carbon dioxide emissions at existing power plants by about one-third by 2030.
"We disagree with the Supreme Court's decision to stay the Clean Power Plan while litigation proceeds," White House spokesman Josh Earnest said in a statement.
Earnest said the administration's plan is based on a strong legal and technical foundation, and gives the states time to develop cost-effective plans to reduce emissions. He also said the administration will continue to "take aggressive steps to make forward progress to reduce carbon emissions."
A federal appeals court in Washington last month refused to put the plan on hold. That lower court is not likely to issue a ruling on the legality of the plan until months after it hears oral arguments begin on June 2.