Washington, United States (AFP) – The US Supreme Court declined on Friday to block environmental regulations aimed at reducing harmful emissions of mercury from power plants and methane from oil and gas facilities.

The court, without comment, rejected a request by industry groups and Republican state attorneys general who had asked for the Environmental Protection Agency (EPA) rules to be put on hold while litigation continues in lower courts.

The EPA regulations, brought under the Clean Air Act, are designed to limit emissions of mercury and other toxic air pollutants from coal-fired power plants and curb emissions of methane — a super-pollutant greenhouse gas — from oil and gas facilities.

They are being challenged by power and mining companies and oil and gas firms who contend they are unnecessary and costly.

The nonprofit National Resources Defense Council (NRDC) welcomed the Supreme Court move allowing the EPA rules to remain in place for now.

“The Supreme Court has sensibly rejected two efforts by industry to halt critical safeguards,” David Doniger, a senior attorney at the NRDC, said in a statement.

“For far too long, oil and gas producers have been allowed to ignore the leaks in their own equipment and let dangerous methane and smog-forming compounds pollute our air,” Doniger said.

In June, the Supreme Court temporarily blocked the implementation of an EPA measure aimed at curbing air pollution that drifts across state lines from facilities like power plants.

The “good neighbor” plan would not have taken effect until 2026, but a series of states and companies requested that it be blocked now while litigation against it plays out in a lower court — a request the Supreme Court granted in a 5-4 decision.

The court’s decision to temporarily block the plan was the third time in recent years that it has curbed the EPA’s powers, after it dealt a blow to the agency’s authority to regulate wetlands in 2023 and greenhouse gases in 2022.

cl/bfm

© Agence France-Presse

Featured image credit: Tim Mossholder | Unsplash

Image: Farmer with camel on rural field
Private sector leadership crucial as $23 trillion risk looms from land degradationNews

Private sector leadership crucial as $23 trillion risk looms from land degradation

The private sector has been called to action as the world faces economic losses of up to $23 trillion by 2050 due to widespread land…
Muser NewsDeskMuser NewsDeskDecember 5, 2024 Full article
Image: Aalborg city
Europe’s 30-year cities movement pushes for a faster green transitionNews

Europe’s 30-year cities movement pushes for a faster green transition

The 10th European Conference on Sustainable Cities and Towns (ESCT), held in Aalborg, Denmark, brought together mayors and representatives from across Europe to renew their…
Adrian AlexandreAdrian AlexandreOctober 3, 2024 Full article
Satellite Image: Mediterranean Sea
Image of the day: Saharan dust sweeps over western MediterraneanNews

Image of the day: Saharan dust sweeps over western Mediterranean

A dense plume of Saharan dust is seen spreading northward over the western Mediterranean in this Sentinel-3 satellite image, captured on 15 July 2025. The…
Muser NewsDeskMuser NewsDeskJuly 16, 2025 Full article