China Airlines: GHG emissions 2010-2020, by scope
In 2020, China Airlines' greenhouse gas (GHG) emissions were 5.8 million metric tons of CO₂ equivalent, an 18 percent reduction compared to 2019, due to the COVID-19 pandemic. Direct (scope 1) GHG emissions from flight operations and ground operations, accounted for 99 percent of the total. In the past decade, the annual GHG emissions of China Airlines have fluctuated between 6.2 and 7.2 million metric tons of CO₂ equivalent.