Carbon neutrality is when the net carbon dioxide emissions over an entire year is zero. Achieving carbon neutrality for an airport is in almost all cases impossible without external help. For this reason, airports, among many other industries, look to carbon offsetting as the
final part of the process. Carbon offsetting is providing funds or resources to other projects that reduce carbon dioxide so as to make up for the emissions that one is not able to eliminate. Airport Carbon Accreditation has been designed to give participant airports significant flexibility within specific parameters in deciding how they should offset their emissions in
order to achieve carbon neutrality.