Demand for aviation will increase by 2–3-fold by 2050. Nonetheless, 90% decarbonization compared with 2019 can be achieved by continued efficiency gains in aircraft and operations, and by the use of ultra-green fuels derived from biomass or clean electricity. Achieving this decarbonization goal will require an increase in airfares of up to approximately 15%.

中文翻译：

---

到 2050 年实现 90% 航空脱碳的途径

到 2050 年，航空需求将增加 2 至 3 倍。尽管如此，与 2019 年相比，通过持续提高飞机和运营效率以及使用源自生物质或清洁电力的超绿色燃料，可以实现 90% 的脱碳。实现这一脱碳目标需要将机票价格提高约 15%。