国际清洁运输理事会：2025年设计公平的气候征费报告（英文版）

Levies on commercial aviation fuels and/or airline tickets are often discussed as policies that could help achieve the sector’s 2050 net-zero climate goal. A climate levy can modulate traffic growth in mature markets to allow clean aviation technologies more time to be deployed at a large scale and help bridge the cost gap between conventional jet fuel and alternative energy sources. However, the uneven participation in air travel by household income and by country makes it crucial to assess