Business travel by air (flights)

Greenhouse Gas Protocol

For air travel emission factors, multipliers or other corrections to account for radiative forcing may be applied to the GWP of emissions arising from aircraft transport. If applied, companies should disclose the specific factor used.

(source: GHGP Scope 3 Calculation Guidance, p57)

Implementation by Carbon+Alt+Delete

Carbon+Alt+Delete allows the user to include or exclude the effect of radiative forcing in Air travel. By default, the effect is included by using a central multiplier of 1.9x, in accordance with the methodology of the chosen aviation Emission Factors provider (currently UK Gov.).

Users can decide to not include this additional effect, in which the multiplier will revert to 1.0x. Only the chosen methodology will be shown in dashboard, inventory, and reporting. The user cannot opt to dual-report.

Note: When using automated distance calculator tools (e.g., "by locations" input), conversion from short to medium to long haul EF is done automatically based on distance thresholds (<311km, 312-2175km, >2176 km respectively)