Aviation's first compliance-grade carbon-removal deal is a Climeworks deal that doesn't use direct air capture

Climeworks Solutions and Japan Airlines announced on 18 September what both describe as the world's first CORSIA-compliant carbon-removal agreement — credits aligned with the requirements of the International Civil Aviation Organization's Carbon Offsetting and Reduction Scheme for International Aviation. It is a pilot purchase. The CORSIA-eligible portion is expected to draw on pathways such as soil carbon sequestration and biochar, while JAL separately buys direct air capture credits from Climeworks outside the scheme. Volumes and price were not disclosed.

Why it matters

Almost every durable-removal purchase to date has been voluntary: a company choosing to spend money it was not required to spend, on a tonne nobody made it buy. That is a fragile demand base, and it is the reason the sector's offtake numbers wobble with corporate sentiment. A compliance scheme is the opposite — an airline covering international emissions under CORSIA has to surrender eligible units, and the demand survives the next budget review. Carbon removal entering that category for the first time is a genuine structural change in who has to buy.

The part the headline cannot carry is which removal got in. Climeworks is a direct-air-capture company; it built Orca and Mammoth and it is the name most readers attach to engineered removal. But the CORSIA-eligible side of this deal is expected to be soil carbon and biochar, and the DAC is bought separately, outside the scheme. Read plainly: on the day carbon removal became compliance-grade for aviation, the compliance-grade portion was not the technology the company is famous for.

That is not a knock on the deal — Climeworks Solutions is a portfolio business and selling what qualifies is the job. It is a fact about where DAC sits. The gate that would create non-discretionary demand for engineered removal is eligibility in a compliance scheme, and DAC is still on the wrong side of it, at a moment when the sector needs durable buyers more than it needs another voluntary offtake. Whether this deal is good news for Climeworks and good news for DAC are two different questions with, for now, two different answers.

There is no tracker entry for this one, and the reason is the same distinction: our DAC milestones record what direct air capture can do and what it is permitted to do. Recording a soil-carbon-and-biochar transaction as a DAC milestone would log the opposite of what happened.

What to watch

Whether ICAO moves engineered removal, including DAC, onto the CORSIA-eligible list; whether volumes and prices are ever disclosed for this pilot; and whether other airlines follow before eligibility changes or wait for it.