Tokenized Carbon Credits


  • Derek Sorensen University of Cambridge



Tokenized carbon credits, Decentralized Finance (DeFi), Regenerative Finance (ReFi), Voluntary carbon market (VCM)


Blockchains are well-suited for tokenizing, trading, and retiring voluntary carbon credits. However, tokenized carbon credits are a heterogeneous body of tokens on the blockchain, which hampers some key goals of the industry. We give a detailed exposition of the current state of tokenized carbon credits and the surrounding blockchain-based ecosystem, with the goal of clarifying current impediments to token interoperability and trading with high liquidity.


Andoni, M., et al. “Blockchain Technology in the Energy Sector: A Systematic Review of Challenges and Opportunities.” Renewable and Sustainable Energy Reviews 100 143–174 (2019)

Ashley, M. J., Johnson, M. S. “Establishing a Secure, Transparent, and Autonomous Blockchain of Custody for Renewable Energy Credits and Carbon Credits.” IEEE Engineering Management Review 46.4 100–102 (2018)

Baruch, S., Leraul, J., Sudaric, S. “Scaling Voluntary Carbon Markets Through Open Blockchain Platforms.” SSRN (accessed August 2023)

Beekhuizen, C. “Ethereum’s Energy Usage Will Soon Decrease by 99.95%.” Ethereum Foundation Blog (accessed August 2023)

Belchior, R., Vasconcelos, A., Guerreiro, S., Correia, M. “A Survey on Blockchain Interoperability: Past, Present, and Future Trends.” ACM Computing Surveys 54.8 168:1–41 (2021)

Consensys. “COP27: Leading Technology Companies Launch ‘Ethereum Climate Platform’ Initiative to Address Ethereum’s Former Proof of Work Carbon Emissions.” (accessed August 2023)

Diaz-Valdivia, A., Poblet, M. “Governance of ReFi Ecosystem and the Integrity of Voluntary Carbon Markets as a Common Resource.” SSRN (accessed August 2023)

Dorfleitner, G., Braun, D. “Fintech, Digitalization and Blockchain: Possible Applications for Green Finance.” In M. Migliorelli, P. Dessertine (Eds.), The Rise of Green Finance in Europe Cham, Switzerland: Palgrave Macmillan 207–237 (2019)

Dorfleitner, G., Muck, F., Scheckenbach, I. “Blockchain Applications for Climate Protection: A Global Empirical Investigation.” Renewable and Sustainable Energy Reviews 149 111378 (2021)

Exposito, A. “What Is Regenerative Finance (ReFi) and How Can It Impact NFTs and Web3?” Cointelegraph

Fullerton, J. Regenerative Capitalism: How Universal Principles And Patterns Will Shape Our New Economy. Greenwich, CT: Capital Institute (2015) (Available at

Galen, D., et al. “Blockchain for Social Impact: Moving Beyond the Hype.” Center for Social Innovation, RippleWorks (2018) (accessed August 2023)

Gibbons, L. V. “Regenerative—The New Sustainable?” Sustainability 12.13 5483 (2020)

Group, W. B. Blockchain and Emerging Digital Technologies for Enhancing Post-2020 Climate Markets. (Washington, DC: World Bank) (2018)

Herlihy, M. “Atomic Cross-Chain Swaps.” In Proceedings of the 2018 ACM Symposium on Principles of Distributed Computing New York, NY, USA: Association for Computing Machinery 245–254 (2018)

Herweijer, C., Waughray, D., Warren, S. “Building Block(chain)s for a Better Planet.” World Economic Forum (2018) (accessed August 2023)

John X. “Response to Verra’s May 25th Announcement.” Toucan Blog (accessed August 2023)

Khodai, E. “Toucan Regen Network: Expanding liquidity for Tokenized Carbon Credits.” Toucan Blog (accessed August 2023)

Khodai, E. “Toucan’s Carbon Ecosystem Is Coming to Celo!” Toucan Blog (accessed August 2023)

Likvidi Carbon Platform. “Likvidi Origins Collection.” (accessed August 2023)

Madhavapeddy, A. “4C in the Gold Standard Working Groups on Digital Solutions for Carbon Markets.” Cambridge Center for Carbon Markets (4C) (accessed August 2023)

Marchant, G. E., Cooper, Z., Gough-Stone, P. J. V. “Bringing Technological Transparency to Tenebrous Markets: The Case for Using Blockchain to Validate Carbon Credit Trading Markets.” Natural Resources Journal 62.2 159–182 (2022)

Maupin, J. “The G20 Countries Should Engage with Blockchain Technologies to Build an Inclusive, Transparent, and Accountable Digital Economy for All.” Kiel Institute for the World Economy, Economics Discussion Papers (2017) (accessed August 2023)

Micorriza Association. “NFTree – Offset CO2 with NFT certificates.” NFTree (accessed August 2023)

Naderi, N., Tian, Y. “Leveraging Blockchain Technology and Tokenizing Green Assets to Fill the Green Finance Gap.” Energy Research Letters 3.3 33907 (2022)

Neelakanti, N. “Ecosapiens Whitepaper.” Ecosapiens (accessed August 2023)

Nissl, M., Sallinger, E., Schulte, S., Borkowski, M. “Towards Cross-Blockchain Smart Contracts.” In 2021 IEEE International Conference on Decentralized Applications and Infrastructures (DAPPS) 85–94 (2021)

No Author. “Arbol.” Arbol (accessed August 2023)

No Author. “Blockchain for a Better Planet.” SavePlanetEarth (accessed August 2023)

No Author. “Cambridge Bitcoin Electricity Consumption Index (CBECI).” Cambridge Center for Alternative Finance (accessed August 2023)

No Author. “Carbovalent Documentation.” Carbovalent (accessed August 2023)

No Author. “Cascadia Carbon.” Cascadia Carbon (accessed August 2023)

No Author. “Celostrials.” Celostrials (accessed August 2023)

No Author. “Climate Collective.” Climate Collective (accessed August 2023)

No Author. “Climatecoin.” ClimateCoin (accessed August 2023)

No Author. “Crypto Climate Accord.” Crypto Climate Accord (accessed August 2023)

No Author. “dClimate.” dClimate (accessed August 2023)

No Author. “Filecoin Green.” Filecoin Green (accessed August 2023)

No Author. “Flow3rs.” Flowcarbon (accessed August 2023)

No Author. “Flowcarbon Docs.” Flowcarbon (accessed August 2023) 39 No Author. “MCO2 Token Documentation.” MOSS (accessed August 2023)

No Author. “Gold Standard Announces Proposals to Allow Creation of Digital Tokens for Carbon Credits.” Gold Standard (accessed August 2023)

No Author. “ Backs Gold Standard to Build Digital Solutions to Help Carbon Markets Work for Climate Justice.” Gold Standard (accessed August 2023)

No Author. “KlimaDAO Documentation.” KlimaDAO (accessed August 2023)

No Author. “Likvidi.” Likvidi (accessed August 2023)

No Author. “MetAmazonia.” (accessed August 2023)

No Author. “NFTreehaus.” NFTreehaus (accessed August 2023)

No Author. “NFTrees.” NFTrees (accessed August 2023)

No Author. “Nori Whitepaper.” Nori (accessed August 2023)

No Author. “Open Forest Protocol Documentation.” Open Forest Protocol (accessed August 2023) https: //

No Author. “Regen Ledger Documentation.” Regen Ledger (accessed August 2023)

No Author. “Return Protocol Partners With Flowcarbon To Offer Automated Token-Based Carbon Offsetting To Web3 Users.” Flowcarbon (accessed August 2023)

No Author. “Rewilder Foundation Docs.” Rewilder Foundation (accessed August 2023)

No Author. “The Merge.” Ethereum Foundation (accessed August 2023)

No Author. “Toucan.” Toucan (accessed August 2023)

No Author. “UN Supports Blockchain Technology Climate Action.” United Nations Framework Convention on Climate Change (UNFCCC) (accessed August 2023)

No Author. “Unlock the Value of Carbon Credits to Secure Climate Finance.” Kumo (accessed August 2023)

No Author. “Verra Addresses Crypto Instruments and Tokens.” Verra (accessed August 2023)

Nori. “Pilot Croplands Methodology, Version 1.3.” (accessed August 2023)

Nowak, E. “Voluntary Carbon Markets.” SSRN (2022) (accessed August 2023)

Pan, Y., et al. “Application of Blockchain in Carbon Trading.” Energy Procedia 158 4286–4291 (2019)

Park, A., Li, H. “The Effect of Blockchain Technology on Supply Chain Sustainability Performances.” Sustainability 13.4 1726 (2021)

Parmentola, A., Petrillo, A., Tutore, I., De Felice, F. “Is Blockchain Able to Enhance Environmental Sustainability? A Systematic Review and Research Agenda from the Perspective of Sustainable Development Goals (SDGs).” Business Strategy and the Environment 31.1 194–217 (2022) bse.2882.

Popescu, A.-D. “Decentralized Finance (DeFi)—The LEGO of Finance.” Social Sciences and Education Research Review 7.1 321–349 (2020)

PR Newswire. “Major Win for the Climate: Voluntary Market Closes Door to HFC-23 Projects.” Verra (accessed August 2023) s-door-hfc-23-projects.

Saberi, S., Kouhizadeh, M., Sarkis, J., Shen, L. “Blockchain Technology and Its Relationships to Sustainable Supply Chain Management.” International Journal of Production Research 57.7 2117–2135 (2019)

Saengchote, K. “Where Do DeFi Stablecoins Go? A Closer Look at What DeFi Composability Really Means.” SSRN (accessed August 2023)

Saraji, S., Borowczak, M. “A Blockchain-based Carbon Credit Ecosystem.” arXiv (2021)

Schinckus, C. “The Good, the Bad and the Ugly: An Overview of the Sustainability of Blockchain Technol- ogy.” Energy Research & Social Science 69 101614 (2020)

Sipthorpe, A., Brink, S., Leeuwen, T. V., Staffell, I. “Blockchain Solutions for Carbon Markets Are Nearing Maturity.” One Earth 5.7 779–791 (2022)

Truby, J., Brown, R. D., Dahdal, A., Ibrahim, I. “Blockchain, Climate Damage, and Death: Policy Inter- ventions to Reduce the Carbon Emissions, Mortality, and Net-Zero Implications of Non-Fungible Tokens and Bitcoin.” Energy Research & Social Science 88 102499 (2022)

van Leeuwen, G., AlSkaif, T., Gibescu, M., van Sark, W. “An Integrated Blockchain-Based Energy Man- agement Platform with Bilateral Trading for Microgrid Communities.” Applied Energy 263 114613 (2020)

Woo, J., Fatima, R., Kibert, C. J., Newman, R. E., Tian, Y., Srinivasan, R. S. “Applying Blockchain Technology for Building Energy Performance Measurement, Reporting, and Verification (MRV) and the Carbon Credit Market: A Review of the Literature.” Building and Environment 205 108199 (2021)


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How to Cite

Sorensen, D. (2023). Tokenized Carbon Credits. Ledger, 8.



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