European ETS vs. global CORSIA

In 2012, the EU began taxing aviation emissions through its cap-and-trade ETS, which covers all outgoing flights from the European Economic Area — meaning EU countries plus Iceland, Liechtenstein and Norway. Switzerland and the U.K. later introduced similar schemes.

In parallel, the U.N.’s International Civil Aviation Organization was working on its own carbon reduction plan, the Carbon Offsetting and Reduction Scheme for International Aviation. Given that fact, Brussels delayed imposing the ETS on flights to non-European destinations.

The EU will now be examining the ICAO’s CORSIA to see if it meets the mark.

“CORSIA lets airlines pay pennies for pollution — about €2.50 per passenger on a Paris-New York flight,” said Marte van der Graaf, aviation policy officer at green NGO Transport & Environment. Applying the ETS on the same route would cost “€92.40 per passenger based on 2024 traffic.”

There are two reasons for such a big difference: the fourfold higher price for ETS credits compared with CORSIA credits, and the fact that “under CORSIA, airlines don’t pay for total emissions, but only for the increase above a fixed 2019 baseline,” Van der Graaf explained.

“Thus, for a Paris-New York flight that emits an average of 131 tons of CO2, only 14 percent of emissions are offset under CORSIA. This means that, instead of covering the full 131 tons, the airline only has to purchase credits for approximately 18 tons.”