为了应对航空碳排放量的快速增长，国际民航组织于2016年10月6日通过2020碳中和增长战略，简称CNG2020战略。CNG2020战略是第一个全球性航空减排市场机制，对航空公司的影响巨大，但是现有文献并未针对这一主题进行研究。本项目以CNG2020战略下航空公司效率评价理论与方法为主题，分四个阶段依次开展研究：航空公司效率指标的预测方法研究、考虑碳排放的航空公司效率评价方法研究、考虑碳排放限额的航空公司效率评价模型研究和考虑碳税和碳交易的航空公司效率评价模型研究。本项目不仅可以丰富航空公司效率评价理论与方法，还可以为航空公司效率提升和应对CNG2020战略提供有价值的参考和建议，具有重要的理论与现实意义。

On October 6, 2016, the "Carbon Neutral Growth from 2020" strategy (CNG2020 strategy) was passed by International Civil Aviation Organization to cope with the rapid growth of aviation carbon emissions. CNG2020 strategy is the first global aviation carbon offset scheme and will have significant impacts on airlines. However, existing papers have not done research on this topic. This project focuses on the theory and method of measuring airline efficiency under the CNG2020 strategy, and will carry out systematic research in four stages successively: The forecasting method for the indices of airline efficiency, the evaluating method of airline efficiency with carbon emissions, the evaluating model of airline efficiency with carbon emission limits and the evaluating model of airline efficiency with carbon tax and carbon trading. This project has the important theoretical and practical significance, which can not only enrich the theory and methodology of airline efficiency, but also provide reliable references on improving efficiency and coping with CNG2020 strategy for airlines.