A federal court on Tuesday struck down an Obama administration rule that banned certain uses of certain gases used in air conditioning and refrigeration.
The court said that the Environmental Protection Agency (EPA) cannot ban hydrofluorocarbons (HFCs) under a Clean Air Act provision meant to protect the ozone layer, since that section is meant only to stop ozone-depleting substances.
The U.S. Court of Appeals for the District of Columbia Circuit's 2-to-1 ruling puts a dent in a major piece of former President Obama’s climate-change agenda.
When released into the atmosphere, HFCs are extremely potent greenhouse gases, with an Earth-warming potential up to 14,800 times that of the same volume of carbon dioxide. They break down in as little as 15 years, so phasing out the use of HFCs could bring quick results to greenhouse gas-cutting efforts...
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