Last week, the U.S. Court of Appeals for the D.C. Circuit invalidated part of a 2016 EPA rule that made hydrofluorocarbons (HFCs) unacceptable for various uses in aerosols, automobile air conditioners, commercial refrigerators, and foams.
In the waning years of the Obama presidency, EPA made an effort to combat climate change by enacting two rules restricting the use of HFCs, which are greenhouse gases. EPA claimed it had authority to do so under Title VI of the Clean Air Act. Section 612 of the Act …
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