By BarathVector Editorial — 2026-02-04
Airlines Face Carbon Credit Cliff: Only 5% of Required Offsets Exist
The aviation industry is sleepwalking toward a carbon credit crunch that could reshape air travel economics.
The numbers are stark, almost absurdly so. The global aviation industry needs between 100 and 150 million carbon credits eligible under the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) by the end of 2026. The number issued to date? A mere 7.14 million.
That's roughly 5% of minimum requirements. And the clock is ticking.
The CORSIA Timeline
CORSIA represents the first global market-based scheme applied to an entire sector. Adopted by the International Civil Aviation Organization (ICAO) in October 2016, it was designed to cap net aviation CO2 emissions at 2019 levels through carbon offsetting.
The scheme unfolds in three phases:
Pilot Phase (2021-2023): Voluntary participation by early adopters established the framework and tested mechanisms.
Phase 1 (2024-2026): Currently underway, participation remains voluntary for states, but compliance is mandatory for airlines operating between participating countries. As of January 2026, 130 states have signed on.
Phase 2 (2027-2035): This is where things get serious. Participation becomes mandatory for most member states, excluding only Least Developed Countries and those with minimal aviation activity.
The Supply-Demand Chasm
The International Air Transport Association (IATA) projects demand for CORSIA Eligible Emission Units (EEUs) in the first phase at between 146 and 236 million units. Yet the supply pipeline tells a different story.
The gap isn't just large - it's structural. Unlike compliance carbon markets like the EU ETS, where permits are issued by regulators, CORSIA relies on voluntary carbon market infrastructure to generate credits. And that market has spent years battling credibility concerns, methodological debates, and price volatility.
Quality requirements compound the problem. CORSIA-eligible credits must meet strict criteria set by the ICAO Council, including additionality, permanence, and robust monitoring. Many existing voluntary market credits don't qualify.
Price Implications
Current forecasts suggest CORSIA carbon credits will trade between $25 and $36 per ton by 2027. But these projections assume adequate supply materializes.
Where supply remains constrained, prices could spike to $60 or more per ton. For an industry that operates on razor-thin margins - the average airline profit per passenger hovers around $6 - this represents a significant cost escalation.
Consider a transatlantic flight generating roughly 1 ton of CO2 per passenger. At $60 per credit, that's $60 added to the cost base. Multiply across millions of flights, and the financial implications become substantial.
The Participation Map
The 130 participating states cover approximately 77% of international aviation activity. Notable participants include all EU member states, the United Kingdom, Japan, South Korea, Singapore, and the Gulf states.
Recent additions include Vietnam (January 2026) and three smaller nations - Comoros, Mauritania, and Saint Lucia - who joined in 2025.
Conspicuously absent from the voluntary phase: China, India, Russia, and Brazil. Their eventual participation in Phase 2 will dramatically expand both the scope and credit demand of the scheme.
What Happens Next
The aviation industry finds itself in an unusual position: committed to a compliance framework without the supply infrastructure to support it.
Several dynamics could unfold:
Accelerated Credit Generation: Project developers may fast-track CORSIA-eligible projects, though the 2-3 year development timeline for quality credits limits near-term supply growth.
Price Spikes and Pass-Through: Airlines may simply absorb higher credit costs and pass them to passengers, adding another inflationary pressure to air travel.
Compliance Flexibility: ICAO could potentially adjust timelines or eligibility criteria, though this risks undermining the scheme's credibility.
Technology Acceleration: High carbon prices create stronger incentives for sustainable aviation fuel adoption and efficiency improvements.
The Bigger Picture
CORSIA's supply crisis reflects a broader tension in climate policy: the gap between commitment and implementation. Setting emissions targets is the easy part. Building the infrastructure to achieve them - whether through carbon markets, renewable energy deployment, or technology development - is where ambition meets reality.
For the aviation sector, that reality check is arriving in 2027. The question now is whether market mechanisms can scale fast enough to meet mandated demand, or whether the industry's first global carbon scheme will be defined by shortage and price volatility rather than smooth transition.
The 7.14 million credits currently available suggest the aviation industry has significant ground to cover. And unlike most supply chain problems, this one can't be solved by simply ordering more inventory.
BarathVector Editorial Team covers climate policy and carbon markets. For more analysis on CORSIA and aviation emissions, follow our Climate & Environment section.