Working towards carbon calculation standards for aviation

Stuart Brocklehurst

Group Communications Director, Amadeus IT Group

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You’ve seen what we’re doing to conserve water and reduce waste in our offices – but we’re also in a unique position to take our commitment to the environment a step further.


Amadeus and the International Civil Aviation Organisation (ICAO) are taking significant steps towards reaching wide consensus on an aviation industry standard calculation methodology for COemissions per passenger.

Calculating CO2 emissions per passenger is complicated by a number of factors related to data availability, scientific uncertainty regarding global warming effects of certain aircraft emissions, and the unavoidable subjectivity of allocating aircraft emissions to individual passengers.

This has led to a situation in which different calculators offer significantly different results for the same itinerary.

In October 2009 Amadeus and the ICAO executed an agreement by which Amadeus would use and promote the ICAO CO2 calculator.

The information obtained from the ICAO calculator is used to provide CO2 emissions information to passengers and corporate customers willing to build emissions inventories and offset emissions.

Through the Amadeus - ICAO agreement, the ICAO provides calculated emissions data per city pair using their calculation methodology; and Amadeus on the other hand facilitates the usage of the calculator through our technology and global reach.

The current version of the Amadeus corporate booking tool (Amadeus e-Travel Manager) includes a COdisplay functionality that uses CO2 estimations from the ICAO carbon calculator.

We look forward to continuing to work with the ICAO and other industry players towards the achievement of further environmental goals.

Have a look at our latest Corporate Responsibility Report for more information about what we’re doing to uphold our commitment to the environment.


Environmental Sustainability