"The Supreme Court will not revive an Obama-era climate regulation struck down last year.
Environmentalists and business interests had hoped the justices would accept a case involving a 2015 EPA rule aimed at phasing out the use of powerful greenhouse gases known as hydrofluorocarbons.
The justices denied their petition today, declining to review a lower-court decision that struck down the program.
EPA's plan to phase out HFCs — which are thousands of times more potent than carbon dioxide — was an important part of the Obama administration's climate agenda. EPA relied on a portion of the Clean Air Act focused on eliminating ozone-depleting substances and applied it to HFCs used for refrigeration, air conditioning and other uses."