WASHINGTON (AP) — Near the end of his first term, President Donald Trump signed into law a bill that aimed to reduce harmful, planet-warming pollutants emitted by refrigerators and air conditioners, garnering bipartisan support. However, five years later, the administration is reversing this course by proposing to loosen federal regulations on potent greenhouse gases like hydrofluorocarbons (HFCs). Such gases are significantly more harmful than carbon dioxide with respect to global warming.

The Environmental Protection Agency’s new proposal signals a pivot from the previous administration’s efforts, creating disarray for businesses that had aligned with the original climate regulations. Environmentalists are voicing strong opposition, warning that easing restrictions could lead to heightened climate pollution and jeopardize the progress in transitioning to more sustainable refrigerant technologies.

EPA Administrator Lee Zeldin stated that relaxing the rules will make refrigerants more affordable, providing relief from escalating costs linked to stringent compliance timelines initiated under former President Joe Biden.

Previously, the American Innovation and Manufacturing Act, signed by Trump, had fostered a collaborative drive from both environmental groups and business organizations against HFC use, pushing for cleaner alternatives instead. While industry groups had initially welcomed the expedited phase-out of HFCs as part of international agreements, the abrupt reversal creates uncertainty in the market — creating a potential conflict as states like California continue pursuing stricter local regulations.

The shift in approach is troubling to many, signaling a departure from unified climate policies toward a more fragmented regulatory environment, with experts cautioning against the long-term effects this might have on both climate goals and industry competitiveness.