What cryptocurrency is killing the planet?

The rise of digital currencies has sparked a debate about the impact of cryptocurrency on the environment. With different blockchain technologies such as Bitcoin, Cardano, and Solana, the environmental impacts of each must be considered before they are ready for mass adoption.

With increasing regulatory scrutiny around the world, it is important to explore the environmental impacts of these cryptocurrencies and determine which ones may have the most serious environmental consequences.

The environmental debate around cryptocurrencies

As cryptocurrencies gain popularity, so do concerns about their impact on the environment.

In an effort to raise awareness of the environmental consequences of bitcoin mining, Greenpeace has joined forces with art activist Benjamin von Wong as part of their ongoing “Change the Code, Not the Climate” initiative. The campaign’s goal is to move the Bitcoin consensus method to a greener Proof of Stake (PoS) model.

On March 23, Greenpeace unveiled the artwork they had commissioned, named “Satoshi’s Skull”. This stunning widget features an 11-foot (3.3-meter) skull emblazoned with the bitcoin logo and glowing red laser eyes.

Constructed from repurposed electronic waste, the skull is decorated with “smoking stacks” that represent the “fossil fuel and coal pollution” generated by bitcoin mining, as well as the “millions of computers” used to verify transactions on the network.

Satoshi skull. source: Green area

Energy consumption, mining hardware, and green energy support occupy a large part of the conversation in the crypto industry. Even US bitcoin mining companies like Terawulf are moving in towards nuclear power plants To reduce the impact of encryption on the environment.

However, there are many factors to consider when evaluating environmental footprint Cryptocurrency to understand how it affects adoption.

Evidence of the impact of cryptocurrencies on the environment


Bitcoin, the first and most well-known cryptocurrency, uses the Proof-of-Work (PoW) consensus mechanism. It requires miners to solve complex mathematical problems to validate transactions.

The process consumes large amounts of energy, and the use of specialized ASIC miners has raised environmental concerns.


Monero, another proof-of-work cryptocurrency, uses the RandomX algorithm. It focuses on CPU mining, making it more decentralized and environmentally friendly.

By using home computers instead of ASIC mining farms, Monero reduces energy consumption and e-waste production.

Proof of Impact Stake Cryptos


Cardano uses the Proof of Stake (PoS) consensus mechanism. It is generally more energy efficient than proof of work.

In PoS, participants validate transactions based on the amount of cryptocurrency they own and are willing to “share” as collateral. Cardano’s staking mechanism does not require custodial relinquishment or risk of staked assets, which makes it unique among point-of-sale cryptocurrencies.


Polkadot also uses a PoS system, but with the risk of being cut off for validators who submit fraudulent transactions.

While PoS cryptocurrencies such as Cardano and Polkadot are generally more energy efficient than PoW, their environmental impact depends on the initial distribution of coins and the centralization of ownership.

Proof of work vs proof of stake
PoW vs. PoS. source: Leo Hertz

Solana’s decentralized approach around the clock

Solana’s innovative approach uses a decentralized clock to enable faster transaction processing without the need for ASIC miners.

By utilizing a single core CPU and focusing on time proof, Solana achieves greater efficiency and lower environmental impact.

Here’s a closer look at Solana’s decentralized clock approach:

  • Proof of History (PoH): PoH is the backbone of Solana’s decentralized approach around the clock. It is an encryption technology that allows the network to generate a verifiable, tamper-resistant timestamp for each transaction. This ensures that all network participants can agree on the order and timing of transactions without relying on a central authority.
  • Decentralized clock mechanism: In traditional blockchain systems, validators or miners are required to reach a consensus on the order of transactions within each block. This can lead to speed limitation due to the need for communication and agreement between nodes. However, Solana’s decentralized clock mechanism allows transactions to be processed independently, without waiting for consensus, which greatly increases network speed.
  • timestamp transactions: By assigning a unique timestamp to each transaction, Solana ensures that the order of transactions is maintained across the network. This eliminates the need for auditors to reach consensus on the order of transactions, further improving network speed and efficiency.
  • Scalability: Solana’s decentralized clock approach enables the network to handle a high volume of transactions per second, making it an ideal platform for decentralized applications (dApps) and other use cases that require high throughput and low latency.
  • protection: The PoH mechanism ensures that transactions have a secure timestamp, making it difficult for malicious actors to manipulate the order of transactions or create fraudulent timestamps. This enhances the overall security and trustworthiness of the Solana network.

Comparing Impacts on the Environment: Bitcoin, Cardano, and Solana

Energy consumption

While Bitcoin is famous for High energy consumptionCardano and Solana consume much less due to their different consensus mechanisms.

PoS systems like Cardano are generally more energy efficient than PoW systems like Bitcoin.

Mining devices

Bitcoin’s reliance on specialized ASIC mining hardware contributes to its environmental impact.

In contrast, Monero, Cardano, and Solana focus on using hardware that is widely available, such as CPUs in the case of Monero and Solana, and Cardano’s PoS system. This reduces the environmental footprint associated with mining hardware production and disposal.

Green energy support

while mining bitcoin In the spotlight for its energy consumptionIt has also led to an increase in the adoption of green energy sources such as wind and solar energy. Some mining operations use excess energy from renewable sources, mitigating their environmental impact.

Bitcoin energy consumption
Bitcoin energy consumption. source: DigiConomist

Cardano and Solana, with their low power consumption, have the potential to support green energy as well. But the impact of these cryptocurrencies on the environment is not as significant as that of bitcoins.

The future of eco-friendly cryptocurrency

As environmental concerns surrounding cryptocurrency grow, the development of new environmentally friendly technologies and consensus mechanisms will become increasingly important.

Ethereum energy consumption
Ethereum energy consumption. source: DigiConomist

Innovations like Monero’s RandomX, Cardano’s unique staking system, and Solana’s decentralized 24/7 approach can pave the way for more sustainable and energy efficient digital currencies in the future.

Factors to weigh when choosing eco-friendly encryption

When deciding which cryptocurrency to support or use, keep the following factors in mind:


Transaction processing speed is a primary consideration. Solana’s unique approach enables faster transactions, while Cardano’s PoS system also provides higher efficiency compared to PoW cryptocurrencies such as Bitcoin.


Evaluate the security features of each cryptocurrency, such as the consensus mechanism, and potential vulnerabilities. Cardano’s unique staking system does not require custodianship or asset risk. This is an example of a safe and innovative approach.


Decentralization is an essential feature of cryptocurrencies. Monero’s focus on CPU mining and Solana’s single-core CPU approach further contribute to decentralization. These solutions prevent centralization issues associated with ASIC mining farms.

The impact of coding on the environment

Consider each cryptocurrency’s environmental footprint, including energy consumption, mining hardware, and green energy subsidies. Cardano and Solana are generally more environmentally friendly than Bitcoin due to their compatibility mechanisms and focus on widely available hardware.

While Bitcoin is known for its significant environmental impact, alternatives such as Cardano and Solana offer more sustainable options. This is due to their unique consensus mechanisms and hardware requirements.

When choosing a cryptocurrency, consider factors such as speed, security, decentralization, and environmental impact to make an informed decision.

  • Bitcoin Energy Consumption: Bitcoin’s energy-intensive Proof-of-Work (PoW) consensus mechanism has raised concerns about its environmental impact. Many industry leaders advocate moving to a greener model.
  • Cardano green alternative: Cardano’s Proof of Stake (PoS) consensus mechanism provides a greener alternative to Bitcoin. It greatly reduces energy consumption and carbon emissions.
  • Solana’s Decentralized Around the Clock Approach: Solana’s unique Proof-of-History (PoH) mechanism enables the network to achieve high-speed transactions. But it maintains a lower energy footprint compared to Bitcoin.

From art campaigns raising awareness to miners moving to nuclear-powered facilities, there is a growing movement towards adopting greener and more sustainable practices in crypto. As the cryptography landscape evolves, it is imperative to keep an eye on new technologies and solutions that reduce the impact of cryptography on the environment.


Following the Trust Project’s guidelines, this featured article features opinions and perspectives from industry or individual experts. BeInCrypto is dedicated to transparent reporting, but the opinions expressed in this article do not necessarily reflect those of BeInCrypto or its employees. Readers should verify information independently and consult with a professional before making decisions based on this content.

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