claim: Models and direct observations find that CFCs only contribute a fraction of the warming supplied by other greenhouse gases.
evidences.evidence_id: Carbon dioxide:192
evidences.article: Carbon dioxide
evidences.evidence: Increases in atmospheric concentrations of CO 2 and other long-lived greenhouse gases such as methane, nitrous oxide and ozone have correspondingly strengthened their absorption and emission of infrared radiation, causing the rise in average global temperature since the mid-20th century.
evidences.votes: REFUTES NOT_ENOUGH_INFO
evidences.evidence_id: Chlorofluorocarbon:48
evidences.article: Chlorofluorocarbon
evidences.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.
evidences.votes: REFUTES NOT_ENOUGH_INFO
evidences.evidence_id: Greenhouse gas:138
evidences.article: Greenhouse gas
evidences.evidence: The seven sources of CO 2 from fossil fuel combustion are (with percentage contributions for 2000–2004): Carbon dioxide, methane, nitrous oxide (N 2O) and three groups of fluorinated gases (sulfur hexafluoride (SF 6), hydrofluorocarbons (HFCs), and perfluorocarbons (PFCs)) are the major anthropogenic greenhouse gases, and are regulated under the Kyoto Protocol international treaty, which came into force in 2005.
evidences.votes: REFUTES NOT_ENOUGH_INFO
evidences.evidence_id: Greenhouse gas:142
evidences.article: Greenhouse gas
evidences.evidence: Although CFCs are greenhouse gases, they are regulated by the Montreal Protocol, which was motivated by CFCs' contribution to ozone depletion rather than by their contribution to global warming.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: IPCC Fourth Assessment Report:57
evidences.article: IPCC Fourth Assessment Report
evidences.evidence: The report shows in detail the individual warming contributions (positive forcing) of carbon dioxide, methane, nitrous oxide, halocarbons, other human warming factors, and the warming effects of changes in solar activity.
evidences.votes: REFUTES NOT_ENOUGH_INFO