Co2e

A carbon dioxide equivalent or CO2 equivalent is a measure used to compare the emissions of various greenhouse gases (GHGs).

A carbon dioxide equivalent or CO2 equivalent (written CO2e) is a measure used to compare the emissions of various greenhouse gases (GHGs) based on their global-warming potential (GWP), by converting the other GHGs into an equivalent amount of carbon dioxide (CO2) with the same global warming potential (GWP).

CO2 equivalents are commonly expressed as million metric tonnes of carbon dioxide equivalents, (MMTCDE). To calculate a gas's CO2e value, its weight in tons is multiplied by its associated GWP:  MMTCDE = (million metric tonnes of a gas) * (GWP of the gas).