Published forecasts for the voluntary carbon market in 2030 span from roughly one billion dollars to tens of billions. That is not a disagreement about growth rate, but rather a disagreement about whether the market transforms or stays roughly where it is. Planning a project without picking a side is how developers end up disappointed.
What the Observed Data Shows
The measured history is considerably less exciting than the projections.
Retirements, defined as credits actually cancelled against a claim, which is the closest thing to real demand, have been flat at roughly 157 - 182 MtCO2e per year for four consecutive years. Ecosystem Marketplace recorded 2024 traded value at about USD 535 million across 84 MtCO2e.
There is also an inventory overhang: on the order of 1,273 Mt of avoidance credits issued and unretired, which is close to eight years of demand at current retirement rates.
| Indicator | Observed |
|---|---|
| Annual retirements | ~157–182 MtCO2e, flat for four years |
| 2024 traded value | ~USD 535 million |
| Avoidance credit overhang | ~1,273 Mt, roughly 8 years of cover |
Why Projections Diverge So Widely
The forecasts differ on one assumption: whether corporate voluntary demand scales, or whether compliance mechanisms become the dominant buyer.
A voluntary-led scenario requires many companies to buy credits without an obligation, at a time when integrity criticism has made them cautious. A compliance-led scenario requires governments to keep building offset-eligible obligations, which several, including Singapore, are doing.
The evidence of the last four years favours the second reading. Flat voluntary retirements alongside expanding compliance mechanisms is exactly what a compliance-led transition looks like in its early phase.
Planning Against the Uncertainty
Three practical conclusions follow for a project developer.
Do not build a financial model on voluntary price appreciation. Four flat years is a long signal.
Prioritise compliance eligibility. Authorization, corresponding adjustment and recognised methodology determine whether a credit can serve the demand that actually has an obligation behind it.
Assume the quality bar rises. The overhang means buyers can be selective. In a market with eight years of surplus avoidance credits, differentiation comes from measurement quality rather than availability.
Turn climate goals into a verified portfolio
TREEO connects the full carbon cycle, encompassing eligibility, simulation, real time monitoring, and registry ready reporting, thereby combining expert consulting with dMRV technology so the evidence exists before anyone asks for it.
