Crypto glossary
Tokenized carbon credits
Tokenized carbon credits are carbon offsets moved onto a blockchain as tokens so they can be traded, pooled and retired transparently by anyone.
A carbon credit certifies that one tonne of CO2 was avoided or removed, usually issued by a registry such as Verra or Gold Standard after a project is verified. Tokenization brings these credits on-chain: the original credit is locked or retired in the registry, and a token representing it is minted. Tokens can then be traded on decentralized exchanges, pooled into standardised baskets or retired by a smart contract to offset emissions, with every step publicly visible.
Supporters argue this makes a fragmented, opaque market more liquid and accessible, and lets companies or individuals prove retirement without intermediaries. Climate-focused protocols and some blockchains used tokenized credits to offset their own footprint.
Early waves of tokenization mainly bridged old, low-quality credits that buyers in traditional markets avoided, and Verra moved in 2022 to stop credits it had retired from being turned into tokens. Double counting, unclear legal title and the underlying doubts about offset quality remain the main risks.
Example
A company buys tokens from an on-chain carbon pool and sends them to a retirement contract, which burns them and issues a public certificate for 200 tonnes of offset emissions.