On September 23, 2021, the United States Environmental Protection Agency (EPA) issued a final rule establishing a comprehensive program to cap and phase down the production and consumption of climate-damaging hydrofluorocarbons (HFCs) in the United States. HFCs are potent greenhouse gases commonly used in refrigeration and air conditioning equipment, as well as foams and many other applications. A global phasedown of HFCs is expected to avoid up to 0.5 °C of global warming by 2100. Read More