At Level 4+ ‘Transition’ of Airport Carbon Accreditation, airports are required to compensate for their remaining carbon emissions by offsetting.
How to achieve it?
To achieve this level of accreditation, an airport has to:
Carbon offsetting is providing funds to other projects that reduce carbon dioxide so as to make up for the emissions that one is not able to eliminate. For example, an airport could pay for a wind energy facility that replaces a coal-fired power-plant.
Airport Carbon Accreditation has developed a bespoke Offsetting Manual based on a study carried out by the environmental consultancy Ecofys. Airports deciding to offset their residual emissions are advised to consult this comprehensive guide to choosing reliable carbon credits.