Milestone
This action transitions the governance body from a "blueprint" to a fully-resourced, operational reality. It involves all member states providing funding to officially launch the new entity (e.g., the 'World Aviation Authority').
If this body is not established, the new treaty has no entity to manage it. This would immediately undermine the "polluter pays" principle, as there would be no one to assign penalties, allowing rogue actors to continue using fossil fuels without consequence.
Scenario
Optimising together
Context Factor
A unified global regulatory, legal, and data framework for the net-zero transition and seamless air travel.
Timeline
Medium term
PESTEL
Ratify a binding International Treaty for harmonized net-zero emission standards.
This is the formal diplomatic action where member states legally adopt the blueprints from the Short Term. This treaty will legally establish all harmonized standards, such as a single global mandate for 'cradle-to-cradle' circularity in aircraft design.
Read moreOperationalize the global governance body to manage net-zero mandates collaboratively.
This involves the now established body using its full authority. It will focus on using its platform to manage the transition through data sharing, resource coordination, and mutual support, rather than by only issuing fines.
Read moreOperationalize financial mechanisms to create a market-pull for fleet renewal.
This means turning the "polluter pays" principle into a functional market. It involves implementing mechanisms like a global "book-and-claim" system for SAFs, allowing a corporation in New York to pay for SAF use in Singapore, thereby funding the transition.
Read moreImplement 'polluter pays' policies that internalize all external emission costs.
This is the full implementation of the "polluter pays" principle. It means all remaining fossil-fuel flights are subject to strict financial penalties that reflect their full damage, such as a 'non-CO2 multiplier' that triples the carbon price for high-altitude contrail effects.
Read more"... since a consistent and harmonized monitoring is vital for measuring progress." (2025 ICAO Environmental report, p. 09)