Republican-led states and industry groups challenged the EPA regulations, which seek to curb methane emissions and mercury and other toxic pollutants.

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.

In both cases, the court rejected emergency applications without comment, with no noted dissents. Litigation against the Environmental Protection Agency (EPA) will continue in lower courts.