FILE - Ed Newby, owner of All Star A/C and Heating, works on an air conditioning unit on June 26, 2023, in Houston. The Environmental Protection Agency is enforcing stricter limits on hydrofluorocarbons, highly potent greenhouse gases used in refrigerators and air conditioners. A rule announced Tuesday, July 11, would impose a 40% reduction in HFCs below historic levels by 2028, part of a global phaseout of HFCs designed to slow global warming. (Raquel Natalicchio/Houston Chronicle via AP, File)
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