CO2eq / Carbon Dioxide Equivalents

CO2eq means carbon dioxide equivalents. CO2 is the best-known greenhouse gas but not the only one. Key greenhouse gases and their CO2 equivalent include the following:

Greenhouse gas:                                                             CO2 equivalent:

Carbon dioxide                                                                1

Methane (CH4)                                                                25

Nitrous oxide / nitric oxide (N2O)                                 298

Fluoroform (HFC-23)                                                      14800

Sulfur hexafluoride (SF6)                                                22800