Are Non-Fungible Tokens (NFTs) Bad for the Environment?
You may be aware of the effects on the environment of non-fungible tokens, or NFTs. NFTs do not directly affect the environment, but their production process does have an effect on our climate.
NFT creation can be a very energy-intensive process. Since Ethereum switched to a proof-of-stake model, the majority of NFTs are created on a blockchain that uses a fraction of the energy of a proof-of-work blockchain. Blockchains that need to perform energy-intensive tasks, whether they have to do with cryptocurrency or not, may produce too much carbon if they use energy from non-renewable sources.
Continue reading to find out more about the energy requirements of producing NFTs and what steps the developers have taken to lessen their environmental effect.
KEY TAKEAWAYS:
Depending on their manufacturing process, non-fungible tokens (NFTs) could have negative environmental effects.
• The proof-of-work blockchain used to mint a single NFT consumes the same amount of electricity in around 47 days as the average American family. One economist. “Bitcoin Energy Consumption Index.”
• Communities and blockchain developers are attempting to reduce or completely eradicate NFTs’ negative environmental effects.
• The most popular blockchain for minting NFTs is Ethereum. On September 15, 2022, it switched from proof-of-work to proof-of-stake. An important decrease in NFT energy use resulted from the change, known as The Merge.
The Effects of NFTs on the Environment
While NFTs don’t directly affect the environment, the process by which they are created may have a significant negative influence.
This is the process by which NFTs are created:
- NFT is created (typically) on a digital marketplace:
- Using the marketplace’s platform, the NFT creator uploads the NFT data, which is tokenized and recorded in the blockchain. The process of creating keys for an asset is known as tokenization. In this way, the NFT is “minted”.
- • NFT is listed: The creator of the NFT may list it on the market after it is created. The NFT may be auctioned or offered for a predetermined price.
• NFT is bought: A blockchain transaction is started at the time of NFT acquisition. The ownership of the NFT is transferred to the new owner by the blockchain network, which also gets to work confirming the transaction.
The transaction will be handled by several blockchains in accordance with their programming. The processing of an NFT in the two most popular consensus algorithms, proof-of-work and proof-of-stake, is examined here.
NFT Using Work-Proof
A transaction occurs upon the purchase of the NFT. In a proof-of-work blockchain, miners must contend with one another to be the first to validate a transaction in order to get rewarded by the blockchain. This is how the procedure operates:
The transaction is published to the network and queued. After being selected for operation, the network starts mining. Utilizing a hash function, like as SHA-256, to produce a new hexadecimal number that is smaller than the block header hash provided to the NFT is the process known as mining. The hexadecimal number is multiplied by a random number on the miner’s first try, and the random number is multiplied by one on each subsequent attempt. For example, 21 may be the first random number. 22, 23, and so on would be used in the following attempt.
- As a computer completes the mining process, it turns into a grind to produce a number. 1 in 115 quattuorvigintillion (115 followed by 75 zeros) is the probability of correctly guessing the hexadecimal number. Being the first to produce a number smaller than the initial hexadecimal number found in the block header may require trillions of tries.4
• Following the generation of the number, the transaction is closed, the block is verified, and the network advances to the next impossibly large number of attempts to decipher the hash. Hashing is the process of sending an integer through the hash function. An individual miner “hashes” or can “hash” at a specific rate. A single miner is capable of completing millions of hashes every second. One attempt equals one hash. To put things in perspective, the whole Bitcoin network operates on one block at a time, hashes at a rate of roughly 228 exahashes per second (228 followed by 18 zeros), and takes an average of roughly 10 minutes per block
Because of the massive proof-of-work network, which processes blocks one at a time with miners striving to produce fewer blocks overall, there is a relatively high energy need.
Proof-of-Stake NFT
The NFT procedure via the marketplace is the same up until the transaction starts on a proof-of-stake blockchain like Ethereum:
• The network has a queue for the transaction.
• The transaction validation process involves a random assignment of a single staked 32 ETH validator, resulting in much reduced energy consumption. Ethereum states that, compared to proof-of-work consensus, it now consumes 99.95% less energy.7.
• Because competitive number generation is not used in this process, the transaction uses less than 0.03 kWh of energy, or 30 Watt hours (roughly equivalent to six 9-volt batteries). • The validator verifies the transaction and broadcasts the information to other validators, who vote to confirm the block and transaction.
Are NFTs Energy-Efficient?
Energy consumption is not necessary for minting and transferring an NFT, but it can be. Blockchain systems that operate on a proof-of-stake basis are able to produce NFTs without consuming enormous amounts of electricity or harming the environment. Regretfully, reduced energy consumption with proof-of-work blockchains is still unattainable.
For NFT developers and enthusiasts, there are a few options available:
• Use renewable energy: Proof-of-work blockchain miners can power their computers with renewable energy sources. Although proof-of-work mining consumes a lot of energy, the energy source can be emission-free.
• Make investments in renewable energy: Given that some NFTs have sold for remarkable sums of money, you may be able to allocate some of the revenues to renewable energy projects. The environmental impact of generating NFTs could be reduced or eliminated with a widespread switch to renewable energy.
•Invest in cutting-edge technology: The money raised from NFT sales can also go toward cutting-edge technologies that aim to lessen or even reverse the consequences of climate change. One example of an is carbon capture and storage, which gathers and pumps carbon dioxide emissions into the ground.
Where to Get NFTs That Use Less Energy?
You have a few options for buying an NFT if you wish to avoid damaging the environment. One might drastically lessen their environmental impact by selecting a marketplace that runs on a proof-of-stake blockchain or NFTs created on one. Several noteworthy blockchains with proof-of-stake include:
•Ethereum is a blockchain platform that may be utilized for many purposes such as NFTs, smart contracts, dApps, and basic token exchanges. Ethereum is used by the NFT marketplace OpenSea.
• Solana: A variety of NFT marketplaces, such as Magic Eden, Solanart, and Rabbit Hole, are supported by the Solana blockchain.
• Algorand: The Algorand blockchain facilitates many NFT marketplaces as well as Aorist, an artist-focused NFT network. Because the Algorand blockchain is made to never divide into multiple versions, it is ideally suited to enable NFTs.
• Cardano: This blockchain is renowned for its eco-friendliness.CNFT and Galaxy of Art are two of the 13 NFT marketplaces that are hosted on Cardano.
• Tezos: Several NFT marketplaces are housed on the Tezos blockchain, such as Rarible, which facilitates the creation of NFTs by artists in addition to operating an NFT marketplace.
Are Environmentalists Able to Purchase NFTs?
Should you be invested in NFTs but also concerned about combating climate change, you may believe that the two goals are incompatible. You can buy an NFT and still be environmentally conscious, but you can’t buy any old NFT; you have to buy one that won’t use electricity for nearly 48 days.
You should try to limit your investments to NFTs created under the proof-of-stake consensus approach if you are devoted to matching your investment portfolio to your position on climate change. Now that the proof-of-stake switch on the Ethereum platform is complete, investors who care about the environment can purchase NFTs issued on Ethereum (ETH) with a little less worry.
Frequently Asked Questions
What Is the Environmental Impact of Non-fungible Tokens (NFTS)?
An increased carbon footprint is one effect that the environment may suffer when a non-fungible token (NFT) is minted at an NFT marketplace through the use of an energy-intensive process like proof-of-work. On the other hand, NFTs created on a proof-of-stake blockchain have a much smaller environmental impact.
Do NFTs Consume a Lot of Energy?
It takes less than 0.03 kilowatt-hours of electricity to mint one NFT on the Ethereum network, which is equivalent to three hours of YouTube viewing. Minting one on a proof-of-work blockchain requires roughly 47 days’ worth of electricity, equivalent to what a US household spends.
Are NFTs Available for Purchase by Environmental, Social, and Governance (Esg) Investors?
NFTs created on a proof-of-stake blockchain are attractive to investors who place a high priority on environmental, social, and governance (ESG) issues because their environmental impact has been greatly minimized.