What is it?

• Tool for computing CO2 emissions from passenger air travel

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What is it used for?

• Knowing your aviation carbon footprint

• Can be used with offset programs

• Verification of reported emissions

Climate Neutrality

“Climate neutrality” is defined by the entire set of policies that an institution uses when it estimates its known GHG emissions, takes measures to reduce them, and purchases carbon offsets to “neutralize” those emissions that remain

- UNEMG (Environmental Management Group) EMG/AM.07/05/Rev.2

The ICAO Carbon Calculator is used UN-wide insupport of the Climate Neutral UN Initiative

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• Methodology developed through technical committee (CAEP)

• Experts from ICAO, States, IATA, ICCAIA (manufacturers), NGOs

and Universities

• Fully documented and best publicly available data

• Suitable for use with offset programmes

• Methodology is internationally accepted

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How was it developed?

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Origin and Destination Airports

Class of Service

CO2 for Selected Trip

Great Circle Distance +

Correction Factor

MultilateralSchedulesDatabase

Pax:CargoRatio

LoadFactor

Number of Economy

Passengers

Weighted Average Fuel Burn

CO2 perEconomyPassenger

Class ofService Factor

CORINAIR

Simple to use

Only inputs are airports and class of service

Methodology

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Web Interface

• Transparent

• Easy-to-use

• Publicly available

• Delivers consistent unbiased estimates of CO2 – suitable for use with offset programs

• Available since June 2008

www.icao.int

Link to Methodology

FAQ

Customization Possible

• Designed to facilitate inventory preparation

• Desktop interfaces (e.g. Excel)

• Direct integration with travel approval systems

• Direct integration with Global Distribution Systems

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Primary Users• The UN system

• Amadeus (about 37% of global airline bookings,

more than one million per day)

• Travelling public

• Member States

• Phased approach for updating methodology and data through CAEP

• Formulation of a methodology for air cargo

Try it at www.icao.int

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Next Steps