Gases that contribute to the greenhouse effect, the most important of which are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), short-lived tropospheric ozone (O3), water vapour, chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulfur hexafluoride (SF6).
See also greenhouse effect.