Rarible, Tezos and Carbon Neutrality: An NFT Explainer

Rarible is a multichain NFT marketplace. Its RARI token is tied to governance of the protocol, the Rarible Chain and the Foundation treasury. The platform has a history of supporting several networks rather than one.

The first major chain move covered here is Tezos. Public reporting report that Rarible officially launched its integration with the Tezos blockchain in December 2021. Tezos is a proof-of-stake network, which means validators secure the chain by staking tokens rather than by running energy-heavy mining hardware. That design was a key reason Tezos was discussed in the context of greener NFTs.

In December 2022, a report said Rarible had adopted Polygon as its fourth blockchain integration, after Ethereum, Flow and Tezos. The stated aim was to make NFT creation and trading more accessible across more networks.

A December 2023 report, written in Russian, said Rarible had stopped supporting transactions on one network. The company framed the change as a way to free resources for better functionality and integration with other chains. The excerpt cut off before naming the network, so do not assume which chain it was. Check Rarible's own announcements for the current list of supported networks.

The practical lesson is that a marketplace's chain support can change over time. A move to a network in one year does not guarantee support in the next, so verify before you rely on a specific chain.

Tezos is often grouped with other proof-of-stake networks that use much less energy than proof-of-work chains. In proof-of-stake, a validator's chance of adding a block depends on the tokens it has staked, not on how much computing power it runs. This is a widely understood difference, and it is the main reason the chain was discussed in sustainability conversations around NFTs.

However, a lower-energy base layer does not settle every question. A marketplace is more than one blockchain. It runs websites, indexers, storage, customer support and company offices. Those parts can have emissions too. The chain's energy profile describes one piece of the picture.

Also, the number of transactions and the energy used per transaction are different measures. A network can use little energy overall and still have a high footprint per user if it handles low volume. Readers should not treat any single chain as automatically green or as a guarantee of a platform's total impact.

If you want to compare energy profiles, ask a few questions. Which consensus mechanism does the chain use? What does the platform say is included in its footprint? Does it publish any figures, and are those figures from a named source? A clear answer to each question is more useful than a general statement about being environmentally friendly.

Carbon neutrality is a specific claim, and it is worth separating its parts. Most organisations that use the term describe three steps. First they measure their emissions. Next they reduce them where possible, for example by using renewable power or more efficient systems. Finally they offset what remains by buying carbon credits that are meant to represent emissions reductions or removals somewhere else.

The quality of offsets is a common point of debate. Credits can differ in how they are verified, how long the reduction lasts and whether it would have happened anyway. The voluntary carbon market is active and changing. Weekly market news in mid-2026 covered a range of projects, which shows how much activity there is, but it also shows that the quality and pricing of credits vary.

Some commentary in public reporting makes a broader point. Reporting on the NFT boom in 2021 said that advances in proof-of-stake networks, carbon offsetting and alternative energy could make NFTs greener. Other commentary asked whether these changes were arriving too late. Both views are useful. They suggest that improvements are real but that the sector's total impact is still under scrutiny.

When you read a carbon-neutral claim, look for the year it covers, the boundary of what is counted, and whether the offsets are named and independently verified. A claim without those details is a starting point for questions, not a conclusion.

Public reporting give a clear picture of the Tezos integration and the later chain changes. They do not, on their own, confirm a specific Rarible campaign or pledge on carbon neutrality. The most relevant pieces are general reports about greener NFTs and carbon offsetting, and a partnership item about a gaming developer that cited a low carbon footprint on a network. That is not evidence about Rarible's own footprint.

This matters because the phrase pushes for carbon neutrality can mean different things. It could describe a company statement, a product feature, a grant program or simply a stated goal. Each has different evidence behind it. Without a named announcement and a published methodology, a reader cannot tell which one applies.

To check the claim, start with Rarible's official blog or social channels and look for a dated announcement. Then look for a methodology page that explains what is measured, what is offset and which registry or standard is used. If the company has published an emissions report, check whether it was independently reviewed.

If you cannot find a primary source, say so in your own notes and avoid repeating the claim as fact. This is a common and sensible habit for any sustainability statement in crypto.

You can test any platform's sustainability statement with a short checklist. None of these steps needs technical skill, and each one helps you separate measured claims from marketing.

First, find the original statement. Check the date, the author and whether it is on the company's own site. Second, read the scope. Does it cover the blockchain only, or the whole company, including cloud services and offices? Third, look for the method. A serious claim names its standard, its calculation approach and its data period.

Fourth, look at the offsets. Ask which registry issued the credits, whether they are retired on your behalf or by the company, and whether a third party has reviewed them. Fifth, check for updates. Sustainability reporting that has not been refreshed for years is less useful than a current one.

Sixth, compare claims across platforms. If two marketplaces on the same chain describe their footprints in very different ways, the difference often comes from scope rather than from real performance. Note what each one includes before drawing a conclusion.

Finally, keep your own record of what you checked and when. Crypto platforms change quickly, and a note with a date helps you revisit the question later.

For collectors, the chain a marketplace uses affects fees, speed, wallet support, and which other platforms you can trade with. Tezos-based NFTs are traded on several marketplaces, and objkt is one of the Tezos-focused options that the site covers. Before you buy, check that your wallet supports the chain, that you hold enough of the network's native token to pay fees, and that the marketplace lists the item you want.

Royalties are another practical point. Royalty rules have changed across marketplaces and chains, and enforcement is not uniform. A creator's royalty setting may be honoured on one platform and skipped on another. Read the listing terms and the creator's stated royalty policy before you assume a sale will pay a fee to the creator.

Liquidity also varies by chain. An NFT that trades actively on Ethereum may have few bids on a smaller network, and the reverse can also be true for niche collections. Look at recent sales history and open offers, not just the listed price.

If you are moving assets between chains, treat each bridge or wrapping step as a separate risk. Use the official route the marketplace provides, and confirm the destination address before you sign anything.

Chain support and token design can change, so the risks below apply to any platform, not just Rarible.

RARI governs the protocol, so token holders may have a say in decisions about chains and treasury use. Governance decisions can alter fees, supported networks or product priorities. Follow the official governance channels rather than rumours.

Chain removals and migrations can affect your assets. If a marketplace stops supporting a network, listings and offers on that network may be disrupted. Check the platform's support notices and move or withdraw assets according to the official instructions.

Security risks are constant. Phishing sites often copy the look of well-known marketplaces. Fake support accounts may ask for your seed phrase, a private key or a remote-access tool. No legitimate marketplace will ask for your seed phrase. Bookmark the official site, check the URL carefully and review any token approval before signing.

Lastly, do not treat sustainability as a reason to ignore financial risk. An NFT's value can fall sharply, and marketplace features can change. Only spend what you can afford to lose, and keep records of your transactions for tax and audit purposes, following the rules where you live.

Whether you create, collect or simply follow the space, a few steps help you act on this topic with care.

If you are a creator, check the current list of networks your marketplace supports and choose the chain that fits your audience and budget. Read the royalty settings and the marketplace's creator terms. Keep your wallet and recovery phrase offline and never share them.

If you are a collector, verify contract addresses through the chain's explorer before you buy a rare item, and confirm the seller's wallet history where possible. Compare fees across the chain you plan to use, since fees can change.

If you care mainly about sustainability, set your own criteria. Decide whether you want a platform to publish measured emissions, to use a named offset standard, or to reduce its own operational footprint. Then check each marketplace against those criteria rather than accepting one general claim.

If you want to follow Rarible's sustainability work, watch its official channels and note the dates of any announcements. Revisit your notes after major changes, such as a new chain or a new governance proposal.

Finally, keep expectations realistic. A marketplace can reduce its footprint and still have an impact. The useful question is not whether a platform is perfect, but whether it measures, discloses and improves over time.