claim: Models and direct observations find that CFCs only contribute a fraction of the warming supplied by other greenhouse gases.
evidence: The strength of CFC absorption bands and the unique susceptibility of the atmosphere at wavelengths where CFCs ( indeed all covalent fluorine compounds ) absorb creates a “super” greenhouse effect from CFCs and other unreactive fluorine-containing gases such as perfluorocarbons, HFCs, HCFCs, bromofluorocarbons, SF6, and NF3.