Hydrofluorocarbon

[3] Their atmospheric concentrations and contribution to anthropogenic greenhouse gas emissions are rapidly increasing --- consumption rose from near zero in 1990 to 1.2 billion tons of carbon dioxide equivalent in 2010[4] --- causing international concern about their radiative forcing.

Fluorocarbons with few C–F bonds behave similarly to the parent hydrocarbons, but their reactivity can be altered significantly.

Unlike other greenhouse gases in the Paris Agreement, hydrofluorocarbons are included in other international negotiations.

[7] On 15 October 2016, due to these chemicals' contribution to climate change, negotiators from 197 nations meeting at a summit of the United Nations Environment Programme in Kigali, Rwanda reached a legally-binding accord (the Kigali Amendment) to phase down hydrofluorocarbons (HFCs) in an amendment to the Montreal Protocol.

[12] The U.S. Environmental Protection Agency signed a final rule phasing down HFCs on 23 September 2021.