The U.S. will officially phase down HFCs, gases trapping 1,000x more heat than CO2

Nearly six years after the United States helped negotiate it, the Senate is moving to ratify a global climate treaty that would formally phase down the use of hydrofluorocarbons, or HFCs, industrial chemicals commonly found in air conditioners and refrigerators, insulating foams and pharmaceutical inhalers.

(Many thanks to Kemble F. for sharing)