Emission factor
According to the European Environment Agency’s definition, an emissions factor is “the estimated average emission rate of a given pollutant for a given source, relative to units of activity”. Emissions factors essentially quantify the amount of GHG emissions produced per unit of activity, such as fuel consumption, distance traveled, or freight weight.
How are emissions factors measured?
Emissions factors are typically expressed in terms of CO₂ emissions per kilometer, per liter of fuel, or per ton of transported goods.
Who decides the emissions factors for transport modes?
The emissions factor a company uses is somewhat at their discretion, however it's important to choose your emissions factors from a reputable source like the GLEC Framework, CO2Emissiefactoren (NL), DEFRA (UK), EPA (US), or IPCC.
For logistics and transport companies, we recommend using the GLEC Framework as your emissions calculation methodology and source of emissions factors.
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