Carbon Dioxide Equivalence (CO2e) is a quantity that describes, for a given Greenhouse Gas, the amount of CO2 that would have the same global warming potential, when measured over a specified timescale (generally, 100 years).
Six examples:
carbon dioxide (CO2) = 1 CO2e
methane (CH4) = 19 CO2e
nitrous oxide(N2O) = 281 CO2e
hydro fluorocarbons (HFCs) = 500-4000 CO2e
perfluorocarbons (PFCs) = 5000-8000 CO2e
sulfur hexafluoride (SF6) = 21,682 CO2e
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