The Supreme Court on Friday let stand Biden administration rules that would cut emissions of the planet-warming gas methane as well as mercury in a rare win for an environmental regulation pending before the conservative high court.

The Supreme Court on Friday left in place Biden administration regulations aimed at curbing oil and gas facility emissions of methane, a major contributor to climate change.In a separate action, the court also rejected a bid to block a regulation aimed at curbing emissions of mercury and other toxic pollutants from coal-fired power plants.

The stage appears to be set for the justices to grant review, given that the Sixth and Eleventh Circuits have rejected nondelegation challenges, thus creating the type of "circuit split" that increases the chances of Supreme Court intervention.