Chemical plants in the Rubbertown area of Louisville stand near the Ohio River in February 2018 during flood conditions on the river. The Chemours chemical plant, located within the wedge-shaped Chemours property in the lower half of the photo, is the nation’s largest emitter of the climate super-pollutant HFC-23, according to the U.S. Environmental Protection Agency. Credit: Pat McDonogh/Courier Journal LOUISVILLE, Kentucky—A proposed rule by the U.S. Environmental Protection Agency would require the chemical manufacturer Chemours to follow through on a recent voluntary commitment to eliminate emissions of a climate super-pollutant from its Louisville Works chemical plant. The company pledged in March to eliminate 99 percent or more of its emissions of hydrofluorocarbon-23 (HFC-23), a greenhouse gas thousands of times more potent than carbon dioxide, from the plant by the end of 2022 , after Inside Climate News inquired about emissions from the facility. The proposed rule, released earlier this month, would require Chemours to eliminate 99.9 percent of its HFC-23 emissions by October 1, 2022, a deadline that could be extended for up to one year if the company can demonstrate that it needed more time to make the fix. We deliver climate news to your inbox like […]

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