An illustrative case would require a high availability of bioenergy raw materials, whose production is greatly improved by price or other political mechanisms; A 100% replacement with sustainable aviation fuel would require a complete transfer of air traffic from oil refining to sustainable aviation fuel production and substantial expansion of the agricultural sector, both of which would require significant political support. „International civil aviation has once again taken decisive action to address the impact of aviation CO2 emissions on the global climate,“ said ICAO Council President Dr. Olumuyiwa Benard Aliu, „Air transport is the first industrial sector in the world to adopt carbon certification for the design of CO2 emissions. In addition to the pioneering agreement reached by our 39th Assembly last October on the new INTERNATIONAL Aviation CO2 Compensation and Reduction Program (CORSIA), this recent development confirms the leadership of our sector and concrete steps to ensure a sustainable and environmentally friendly future for global civil aviation,“ added President Aliu. At its 40th session in 2019, the ICAO Assembly adopted Resolution A40-18: Consolidated Statement on the Continuation of ICAO`s Environmental Protection Policies and Practices – Climate Change. He reaffirmed the two global targets for the international aviation sector, namely to improve 2% of energy efficiency each year by 2050 and achieve carbon-neutral growth from 2020, as was the case at the 37th edition. The standard applies to new types of aircraft20 and aircraft types that are already in production from 2023. Aircraft that do not meet the standards by 2028 will no longer be able to be manufactured if their designs are not sufficiently modified. Scenario 1 for fuel consumption and CO2 emissions includes the operational improvements needed to maintain the current level of operational efficiency, but does not contain technological improvements beyond those available in current series aircraft. Scenarios 2 (low-tech) expect fuel consumption to increase by 0.96% per year for all aircraft entering the fleet after 2010 and before 2015. and 0.57% per year for all aircraft entering the fleet from 2015 to 2050, in combination with additional improvements throughout the CAEP/9 IE fleet.