Guide to CTM Carbon Emissions Calculations
Carbon Emissions
“Providing an accurate measure of carbon reporting.”
Lightning users are empowered to make more informed decisions about their business travel, with visibility over the carbon emissions for flights, hotels and car hire.
For flights, emissions are calculated using official data from RDC’s multi-dimensional methodology that provides more accuracy in comparison to other respected sources:
- RDC takes route and aircraft type plus more granular factors such as engine type, age, fuel burn, and much more to give you a more detailed picture.
- RDC maintains a comprehensive database of airlines, aircraft and engine types, and seating configurations of more than 35,000 airframes which enables a more granular calculation to be made.
- Fuel efficiency of the aircraft type.
- Efficiency of the airline – seat capacity, load factor.
- Use of Sustainable Alternative Fuels.
- Whether the route is part of a compliance or regulatory emissions program such as CORSIA, EU ETS, etc.
- Whether the operator offsets emissions over and above that which is legally required.
Corporate Travel Management (CTM) continues to work very closely with RDC to ensure all our routes are covered and we deliver carbon emission estimates that are as accurate as scientifically possible.
Flight Carbon Emissions
Carbon emission values for flights are sourced from RDC, a leading Aviation company. The values are based on route, aircraft type, cabin and airline.
Hotel Carbon Emissions
Emission values are sourced from DEFRA/BEIS, a UK government agency that determines the carbon emissions value for hotels based on destination.
Car Carbon Emissions
Emission values are also sourced using DEFRA/BEIS, they consider vehicle category, fuel and engine type as well as average distance travelled.
Flight Carbon Emissions
Carbon emission values for flights are sourced from RDC, a leading Aviation company. The values are based on route, aircraft type, cabin and airline.
Hotel Carbon Emissions
Emission values are sourced from DEFRA/BEIS, a UK government agency that determines the carbon emissions value for hotels based on destination.
Car Carbon Emissions
Emission values are also sourced using DEFRA/BEIS, they consider vehicle category, fuel and engine type as well as average distance travelled.
Flight Carbon Emissions
Carbon emission values for flights are sourced from RDC, a leading Aviation company. The values are based on route, aircraft type, cabin and airline.
Hotel Carbon Emissions
Emission values are sourced from DEFRA/BEIS, a UK government agency that determines the carbon emissions value for hotels based on destination.
Car Carbon Emissions
Emission values are also sourced using DEFRA/BEIS, they consider vehicle category, fuel and engine type as well as average distance travelled.
Flight Carbon Emissions
Carbon emission values for flights are sourced from RDC, a leading Aviation company. The values are based on route, aircraft type, cabin and airline.
Hotel Carbon Emissions
Emission values are sourced from DEFRA/BEIS, a UK government agency that determines the carbon emissions value for hotels based on destination.
Car Carbon Emissions
Emission values are also sourced using DEFRA/BEIS, they consider vehicle category, fuel and engine type as well as average distance travelled.
Flight Carbon Emissions
Carbon emission values for flights are sourced from RDC, a leading Aviation company. The values are based on route, aircraft type, cabin and airline.
Hotel Carbon Emissions
Emission values are sourced from DEFRA/BEIS, a UK government agency that determines the carbon emissions value for hotels based on destination.
Car Carbon Emissions
Emission values are also sourced using DEFRA/BEIS, they consider vehicle category, fuel and engine type as well as average distance travelled.
Flight Carbon Emissions
Carbon emission values for flights are sourced from RDC, a leading Aviation company. The values are based on route, aircraft type, cabin and airline.
Hotel Carbon Emissions
Emission values are sourced from DEFRA/BEIS, a UK government agency that determines the carbon emissions value for hotels based on destination.
Car Carbon Emissions
Emission values are also sourced using DEFRA/BEIS, they consider vehicle category, fuel and engine type as well as average distance travelled.
Radiative Forcing
The IPCC (Intergovernmental Panel on Climate Change) has identified that aircraft emissions at altitude have a greater impact on the atmosphere due to other non-CO2 climate change effects from aviation (e.g., NOx, water vapour, contrails).
To compensate for this increased effect, it’s recommended to apply a multiplier to aircraft carbon emissions to ensure a realistic representation of the impacts. This multiplier is called Radiative Forcing Index, or RFI.
CTM follows the most reputable sources and applies their estimates. As such, CTM has taken the UK Department for Business, Energy and Industrial Strategy (BEIS) recommended RFI of 1.9.
Continuous Improvements
We have completed extensive research to ensure we adopt the most sophisticated calculations to create trust with our users.
As we continue our environmental sustainability journey, new insights emerge and scientific research becomes available, we will continue to improve our carbon emission estimates even further.
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