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

Industrial smoke from coal-fired power plant - abstract image (s carbon bombs projects)
NGOs warn 28 ‘carbon bomb’ projects launched since 2021News

NGOs warn 28 ‘carbon bomb’ projects launched since 2021

Paris, France | AFP | Muser NewsDesk Some 28 so-called carbon bomb fossil fuel extraction projects have begun operating since 2021 despite their catastrophic climate impact,…
SourceSourceOctober 27, 2025 Full article
Image: map afghanistan
Flash floods kill 50 in western AfghanistanNews

Flash floods kill 50 in western Afghanistan

By Abdullah Hasrat, with Mohsen Karimi in Herat | AFP Kabul, Afghanistan (UPDATED) - Flash flooding has killed at least 50 people in western Afghanistan,…
SourceSourceMay 18, 2024 Full article
Image: Eiffel tower during sunset
7,300 excess deaths and counting in France’s historically hot summerNews

7,300 excess deaths and counting in France’s historically hot summer

Paris, France | AFP | Muser NewsDesk France saw more than 7,300 excess deaths during heatwaves so far this year, health authorities said Wednesday, as the…
SourceSourceAugust 19, 2026 Full article