The EPA will start from a blank slate as it weighs whether and how to limit refrigerant chemicals that are potent greenhouse gases, but it’s unclear if the agency will provide the long-term certainty industry is seeking.
The Environmental Protection Agency said in new guidance that it won’t implement a series of Obama-era regulations restricting the production and use of hydrofluorocarbons, or HFCs—chemicals often used as refrigerants that have a global warming potential hundreds to thousands of times greater than carbon dioxide.
The rules were issued in 2015 and 2016. The U.S. Court of Appeals for the...
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