New York has finalized regulations designed to significantly reduce the use of greenhouse gases called hydrofluorocarbons—a refrigerant common in air-conditioning systems.
To address climate change, the U.S. Environmental Protection Agency has proposed a list of alternatives to hydrofluorocarbons (HFCs)—gases that are used in refrigeration, air-conditioning, fire-suppression and ventilation systems for commercial and other types of buildings as well as in cars, aircraft and machinery.