Compliance carbon markets generated approximately $103 billion in government revenue during 2024, while the voluntary carbon market traded a total reported transaction value of $535 million over the same period, a decrease of 29% from 2023. The two halves of carbon credit trading are now decoupling, with compliance demand pulling ahead of voluntary turnover.
For broader regulatory context, our SEC and CFTC crypto enforcement data covers how US regulators treat carbon-token marketplaces.
Key Takeaways
- Carbon pricing instruments worldwide cover around 28% of global greenhouse gas emissions, spanning economies representing nearly two-thirds of global economic output.
- The EU ETS generated 41% of global carbon revenues in 2024, with just 10 jurisdictions accounting for 86% of total revenue.
- The voluntary carbon market saw transaction volumes fall by 25% in 2024 and retirements held fairly steady at 182 million tons across the ten largest standards.
- Verra alone accounts for roughly 63% of voluntary market retirements in 2024, anchored on more than 2,300 registered projects.
- ICVCM has approved 36 CCP-Approved Methodologies and 7 major carbon-crediting programs, with 51,000,000 unretired credits now eligible to carry the CCP label.
- Tokenized carbon supply on Polygon sits at 21.11M Base Carbon Tonne (BCT) in circulation, a ceiling well below registry-level retirement volumes.
Editor’s Choice
- Global carbon pricing revenue reached approximately $103 billion in 2024.
- The voluntary carbon market booked a total reported transaction value of $535 million in 2024.
- California’s February 2025 cap-and-trade auction settled at $29.27 per ton and is expected to generate roughly $851 million for the Greenhouse Gas Reduction Fund.
- RGGI Auction 65 cleared approximately 15.9 million allowances at $25.75 per ton.
- Removal credits priced 381% more than emissions reduction credits in 2024.
- CORSIA covers 130 participating states as of January 2026, regulating 361,159,641 tonnes of qualifying 2024 international aviation emissions.
Recent Developments
- November 2024. COP29 (Baku): Countries adopted the remaining technical guidance on Article 6 of the Paris Agreement, finalizing the legal scaffolding for international credit transfers.
- December 2025. ICVCM: 36 methodologies and 7 crediting programs are CCP-Approved, with 51,000,000 unretired credits eligible for the label.
- April 2025. Aviation compliance estimate: Abatable estimated demand for around 58 MtCO2 of CORSIA-eligible credits to compensate for 2024 aviation emissions.
- February 2025. California cap-and-trade: The auction settled at $29.27, which was $3.40 above the $25.87 price floor.
- 2024 voluntary market: Total reported transaction value fell to $535 million, a decrease of 29% from 2023.
Global Carbon Market Size and Two-Track Structure
- Carbon pricing revenues exceeded $100 billion in 2024, a record for the program category.
- Governments collected approximately $103 billion through carbon pricing in 2024 across emissions trading systems and carbon taxes combined.
- 113 total implemented instruments are tracked across 55 national and 44 subnational jurisdictions.
- 80 carbon pricing instruments are in operation worldwide, a net increase of five over the prior year.
- Emissions trading systems generated 67% of total carbon revenues, while carbon taxes accounted for 33%.
- Demand from compliance markets almost tripled compared to last year, while growth from voluntary buyers has been negligible.
| Market track | 2024 size | Growth direction | Primary mechanism |
|---|---|---|---|
| Compliance markets (revenue) | $103 billion | Demand almost tripled | Government caps, ETS auctions, taxes |
| Voluntary carbon market (value) | $535 million | -29% year over year | Corporate offsetting, registries |
| Article 6 (Paris Agreement) | 1 completed ITMO | Procedural ramp-up | Bilateral state agreements |
| CORSIA (aviation) | ~58 MtCO2 demand | Phase 1 underway | International airline offsetting |
Source: World Bank, Forest Trends Ecosystem Marketplace, ICAO, Center for Climate and Energy Solutions
The headline number masks a structural split. Across our coverage of DeFi market data and tokenized finance, the pattern repeats: a regulated market and a voluntary market that share vocabulary diverge in mechanics. Compliance buyers are forced participants paying spot or auction prices set by governments. Voluntary buyers are corporate offsetters making discretionary purchases that contract under economic pressure. The two operate as different products with different demand curves.
Compliance Carbon Market Statistics
- 37 emissions trading systems are in operation worldwide.
- 43 carbon taxes are in operation worldwide alongside the ETS programs.
- The EU ETS generated 41% of global carbon revenues in 2024.
- Germany’s national ETS contributed 14% of global carbon revenues.
- Canada’s federal carbon tax contributed 9% of global carbon revenues.
- China’s expanded system now covers 15% of global emissions.
- Just 10 jurisdictions made up 86% of global carbon revenues.
| Jurisdiction | Share of global carbon revenue | Mechanism |
|---|---|---|
| EU ETS | 41% | Cap-and-trade |
| Germany national ETS | 14% | Cap-and-trade (transport, buildings) |
| Canada federal carbon tax | 9% | Carbon tax |
| China national ETS | (15% of emissions covered) | Cap-and-trade |
| Top 10 jurisdictions combined | 86% | Mixed |
Source: I4CE Global Carbon Accounts, World Bank State and Trends of Carbon Pricing
By the numbers: The World Bank reports 80 carbon pricing instruments now in operation worldwide, covering around 28% of global greenhouse gas emissions in economies representing nearly two-thirds of global GDP, and demand from compliance markets almost tripled compared to last year, while growth from voluntary buyers has been negligible.
Voluntary Carbon Market Statistics
- Transaction volumes fell by 25% in 2024 across the global voluntary market.
- Credit prices declined by only 5.5% over the same window.
- The total reported transaction value of the Voluntary Carbon Market (VCM) was $535 million, a decrease of 29% from 2023.
- 182 million tons of credits were retired from the ten largest standards in 2024.
- Retirements have plateaued at an elevated level since 2021 despite the value contraction.
- Credits representing emissions removals were 381% more expensive than emissions reduction credits in 2024, up from 245% in 2023.
| VCM metric | 2023 | 2024 | Change |
|---|---|---|---|
| Transaction value (USD) | ~$754 million | $535 million | -29% |
| Transaction volume | (baseline) | -25% YoY | Volume contracting |
| Removal premium over reductions | 245% | 381% | Quality re-pricing |
| Retirements (top 10 standards) | ~180M tonnes | 182M tonnes | Held steady |
Source: Forest Trends Ecosystem Marketplace State of the Voluntary Carbon Market
The voluntary market’s “value down, retirements steady” pattern is unusual but coherent. Buyers are still using credits, retirements held; but the credits clearing the market in 2024 were cheaper, lower volume, and skewed toward higher-quality removals where each tonne carried a premium. The dollar value compressed even as the underlying offsetting work continued.
EU Emissions Trading System Statistics
- EU Carbon Permits increased to €75.51 on the Trading Economics snapshot dated April 30, 2026.
- Average carbon prices rose up to €80 in 2022-2023, before they decreased to €65 in 2024.
- In 2025, prices have so far fluctuated between €60 and €80.
- The EU ETS generated 41% of global carbon revenues in 2024.
- The EU ETS is the longest-running compliance market and the largest contributor to public budgets among ETS programs.
North American Compliance Markets: California-Quebec WCI and RGGI
- California’s February 2025 auction settled at a price of $29.27, which was $3.40 above the $25.87 price floor.
- The February 2025 auction settled $3.40 above the $25.87 price floor and $2.64 below the November 2024 settlement price of $31.91.
- The February 2025 auction is expected to generate roughly $851 million for the Greenhouse Gas Reduction Fund.
- Prices settled at $41.76 per ton at the 14th consecutive sold-out auction in February 2024.
- RGGI Auction 65 sold approximately 15.9 million allowances at a clearing price of $25.75 per ton.
- RGGI Auction 64 cleared at $21.03 per metric ton, the highest clearing price in the program’s history at the time.
Verra and the Voluntary Registry Footprint
- VCS projects have collectively issued over 1.3 billion credits.
- More than 776 million credits have been retired to date under the Verified Carbon Standard.
- More than 2,300 projects were registered under the Verified Carbon Standard (VCS) as of 2024.
- Verra accounts for roughly 63% of voluntary market retirements in 2024.
- Eight total programs are approved for the CORSIA First Phase, setting the eligibility floor for aviation buyers.
- For the CORSIA Second Phase beginning in 2027, four are newly approved: ACR, ART, Gold Standard, and Verra.
| Registry | Cumulative credits issued | Retired | Market share (2024 retirements) |
|---|---|---|---|
| Verra (VCS) | over 1.3 billion | more than 776 million | roughly 63% |
| Gold Standard | (registry-level data tracked separately) | (registry-level) | second-tier share |
| American Carbon Registry (ACR) | (registry-level) | (registry-level) | third-tier share |
| Climate Action Reserve | (registry-level) | (registry-level) | third-tier share |
| ART (TREES) | newer entrant | newer entrant | jurisdictional REDD+ |
Source: Verra (via Wikipedia, citing registry totals at registry.verra.org), Forest Trends Ecosystem Marketplace
Key finding: Verra dominates voluntary retirement share at roughly 63%, anchored on more than 2,300 registered projects and over 1.3 billion credits issued cumulatively. Concentrated registry share means single-issuer policy decisions move the entire voluntary market.
ICVCM Core Carbon Principles Adoption Statistics
- 36 CCP-Approved Methodologies are now in place.
- 7 major carbon-crediting programs have been approved under the Core Carbon Principles framework.
- 51,000,000 unretired credits are now approved to use the CCP label.
- CCP-labelled credits hold approximately a 4% share of 2024 issued volume.
- CCP-labelled credits carry a 25% price premium.
- The framework’s two-tier approval requires both crediting program eligibility and methodology approval before credits can carry the CCP label.
| ICVCM CCP figure | Value | Significance |
|---|---|---|
| Approved methodologies | 36 | Coverage across nature, methane, removals |
| Eligible programs | 7 | Two-tier gating |
| Unretired credits with CCP label | 51,000,000 | Eligible market supply |
| 2024 issued volume share | ~4% | Early adoption phase |
| Price premium over uncertified | 25% | Quality signal pricing |
Source: Integrity Council for the Voluntary Carbon Market CCP Impact Report
Article 6 of the Paris Agreement Implementation Status
- Over 90 Article 6.2 bilateral agreements have been signed as of April 2025.
- Only one ITMO transfer has been fully completed, between Switzerland and Thailand in January 2024.
- At COP29, countries adopted remaining technical guidance on Article 6 of the Paris Agreement.
- The first issuance of an Article 6.4 credit was expected by mid-2025, but the timeline has been pushed to early 2026.
| Article 6 milestone | Status | Date |
|---|---|---|
| Article 6 technical guidance | Adopted | COP29, November 2024 |
| Article 6.2 bilateral agreements signed | over 90 | as of April 2025 |
| Completed ITMO transfers | 1 (Switzerland-Thailand) | January 2024 |
| First Article 6.4 issuance | Pushed back | from mid-2025 to early 2026 |
Source: Center for Climate and Energy Solutions, UNFCCC Article 6 secretariat
CORSIA Aviation Carbon Market Statistics
- As of 1 January 2026, 130 states are participating in CORSIA.
- The baseline of 85% of total 2019 CO2 emissions for all State pairs subject to offsetting requirements in 2024 was set at 305,522,071 tonnes.
- Total 2024 emissions for all applicable State pairs amounted to 361,159,641 tonnes.
- The 2024 Sector’s Growth Factor was calculated as 0.15405257.
- Abatable estimates a demand of around 58 MtCO2 of CORSIA-eligible credits to compensate for 2024 emissions.
| CORSIA 2024 metric | Value |
|---|---|
| Participating states (Jan 2026) | 130 |
| Baseline (85% of 2019 CO2 for State pairs) | 305,522,071 tonnes |
| Total 2024 emissions (applicable State pairs) | 361,159,641 tonnes |
| 2024 Sector’s Growth Factor | 0.15405257 |
| Estimated 2024 offset demand | around 58 MtCO2 |
Source: International Civil Aviation Organization (ICAO), Abatable
Why it matters: CORSIA is the first global market-based instrument that lets one sector, international aviation, pay registries for offsets at compliance scale. The 2024 SGF of 0.15405257 applied to 361,159,641 tonnes of qualifying emissions sizes the program at roughly 56-58 MtCO2 in offset demand for one year alone, more than the entire CCP-labelled credit pool.
Tokenized Carbon Credit Market Statistics
- On October 18th, 2021, Toucan released a liquid carbon token called Base Carbon Tonne (BCT).
- In the week following launch, one million carbon credits were bridged on-chain.
- After eight weeks, over 15 million carbon credits had been tokenized.
- 21.11M Base Carbon Tonne are in circulation as of the current 2026 data.
- BCT is a reference token representing one tonne of carbon from the Verra Verified Carbon Unit (VCU) registry from 2008 or later, bridged by the Toucan Protocol.
At 21.11 million BCT against more than 776 million cumulative Verra retirements, on-chain Toucan supply represents approximately 3% of registry-level Verra settlement activity.
| Toucan BCT milestone | Figure | Date |
|---|---|---|
| BCT launch | Liquid carbon token | October 18, 2021 |
| Week 1 bridged supply | 1 million credits | October 2021 |
| Week 8 cumulative bridged | over 15 million credits | December 2021 |
| BCT supply (current) | 21.11M | 2026 |
| Underlying credit vintage | VCU 2008 or later | Verra registry source |
Source: Toucan Protocol blog, CoinMarketCap (citing Polygon contract 0x2F800Db0fdb5223b3C3f354886d907A671414A7F)
Toucan Protocol and KlimaDAO On-Chain Statistics
- BCT held $9,327,627.99, with 87.16% of treasury holdings in the KlimaDAO treasury snapshot.
- USDC held $1,114,409.30, comprising 10.41% of the treasury.
- The treasury holds 91.02% of the BCT tokens.
- Initial market cap was around $1.2 billion in November 2021.
- Market cap declined to approximately $0.2 billion by May 2022.
- Token price was around $2500 in November 2021, dropping to below $500 by February 2022.
On-chain carbon’s challenge runs structural rather than technical. Verra blocked further bridging of its credits in 2022 over concerns about retired-credit traceability, which froze the supply side of the protocol. The retirement-floor model that protocols like KlimaDAO built also requires sustained price support that crypto-market drawdowns make unaffordable. Compared to the crypto exchange market data that drove order-book liquidity for token launches, registry-bound carbon assets sit in a slower lane. The infrastructure works; the demand pull-through has not arrived.
Carbon Credit Pricing by Project Type and Quality
- Nature-based solutions secured offtake agreements covering over 20 million tons of credits at an average price exceeding $20 per ton.
- Average spot prices for high-quality afforestation and reforestation (ARR) credits rose to around $24 per tonne by September 2025.
- High-rated credits (A-AAA-) averaged $14.80 per ton across the broader rated universe.
- Low-quality (CCC-B) credits saw just $3.50 per ton over the same window.
- Removal credits priced 381% more than emissions reduction credits in 2024.
Carbon Credit Issuance and Retirement Trends
- 182 million tons of credits were retired from the ten largest standards in 2024.
- More than 776 million credits have been retired to date under VCS.
- VCS projects have collectively issued over 1.3 billion credits.
- 51,000,000 unretired credits are now approved to use the CCP label, a small share of total available supply.
- Retirements held fairly steady even as transaction value contracted 29%.
Cumulative VCS retirements at more than 776 million against over 1.3 billion issued imply that the majority of issued credits have already been retired, with the remainder still in circulation.
| Issuance/retirement metric | Value | Source |
|---|---|---|
| 2024 retirements (top 10 standards) | 182 million tonnes | Forest Trends |
| Cumulative VCS issuance | over 1.3 billion | Verra |
| Cumulative VCS retirements | more than 776 million | Verra |
| CCP-labelled unretired pool | 51,000,000 | ICVCM |
| ICVCM share of 2024 issued volume | ~4% | ICVCM |
Source: Forest Trends Ecosystem Marketplace, Verra, ICVCM
The takeaway: Retirement volumes held while value fell. Credits that did clear were cheaper and skewed toward verified removals. The CCP-labelled pool sits at 51,000,000 unretired credits and approximately 4% of 2024 issued volume, leaving most of the market still trading without the integrity label that institutional buyers increasingly require. Country-level adoption mirrors the pattern documented in our crypto adoption data by country round-up.
Frequently Asked Questions (FAQs)
The global carbon market is split between compliance and voluntary segments. Compliance markets generated approximately $103 billion in government revenue during 2024 per I4CE and the World Bank. The voluntary carbon market traded a total reported transaction value of $535 million the same year, a decrease of 29% from 2023 per Forest Trends Ecosystem Marketplace.
Compliance markets are government-regulated programs like the EU ETS, California cap-and-trade, RGGI, and China’s national ETS, where covered emitters must surrender allowances or credits. Voluntary markets serve corporate buyers offsetting non-required emissions through registries like Verra, Gold Standard, ART, and ACR. Demand from compliance markets almost tripled compared to last year, while growth from voluntary buyers has been negligible.
EU Carbon Permits increased to 75.51 €on the Trading Economics snapshot dated April 30, 2026. In 2025, prices have so far fluctuated between €60 and €80, and average carbon prices rose up to €80 in 2022-2023, before they decreased to €65 in 2024.
VCS projects have collectively issued over 1.3 billion credits, with more than 776 million credits retired to date across more than 2,300 registered projects. Verra accounts for roughly 63% of voluntary market retirements in 2024, making it the dominant single registry.
Tokenized carbon brings registry credits on-chain through bridges like Toucan Protocol, which represents each tonne as a Base Carbon Tonne (BCT) ERC-20 on Polygon. 21.11M Base Carbon Tonnes are in circulation as of the current 2026 data. Against more than 776 million cumulative Verra retirements off-chain, on-chain carbon represents approximately 3% of total settlement. For wallet-side adoption, see our self-custody wallet statistics.
Conclusion
Carbon credit trading split into two markets growing in opposite directions during this year’s data window. Compliance programs cleared approximately $103 billion in revenue while the voluntary market value compressed to $535 million with retirements held at 182 million tons across the ten largest standards, and credits representing emissions removals were 381% more expensive than emissions reduction credits in 2024. The EU ETS, California-Quebec WCI, RGGI, China’s national system, and CORSIA aviation pull together as the compliance backbone; Verra, Gold Standard, ART, and ACR carry the voluntary registries; ICVCM’s Core Carbon Principles slowly anchor a quality floor across both.
Tokenized carbon stalled at 21.11M Base Carbon Tonne in circulation against more than 776 million cumulative Verra retirements. KlimaDAO’s treasury stayed concentrated in BCT through the recent drawdown.
Buyers benefit when registry policy, tokenization protocols, and integrity bodies converge on a single quality label and price. Across CoinLaw’s coverage of tokenized real-world assets, carbon is the test case for how a regulated commodity moves to public chains under registry control. Adjacent regulatory mapping work, including our crypto exchange market share data tracks how token markets earn institutional flows.
