ISTANBUL

Health and environmental groups sued the US Environmental Protection Agency (EPA) on Wednesday over its repeal of a core climate science ruling, arguing it unlawfully weakens federal greenhouse gas regulations, according to American media.

PBS News reported that the coalition, including the American Public Health Association, American Lung Association, Environmental Defense Fund, and Sierra Club, filed its challenge at the US Court of Appeals for the District of Columbia Circuit after the agency scrapped the 2009 endangerment finding underpinning Clean Air Act climate rules.

“The agency cannot credibly claim that the body of work is now incorrect,” said Brian Lynk, calling the move “reckless and legally untenable.”

US President Donald Trump hailed it as “the single largest deregulatory action in American history,” while EPA chief Lee Zeldin labeled the rule “the Holy Grail of federal regulatory overreach.”

Critics warned the rollback could dismantle wider emissions standards, with Gretchen Goldman saying it “marks a complete dereliction of the agency’s mission.”