🌱Is the environmental impact of blockchain technology still a significant problem?

Gökçe Ertuğrul
3 min readJun 17, 2023

The blockchain industry understands the significance of addressing its environmental effect and is actively investigating solutions to decrease carbon emissions. This article investigates potential solutions for reducing the carbon footprint of blockchain technology.

Before moving on to solutions for the environmental impact of blockchain technology:

🧵Please check the introductory thread to understand how big of an energy consumption problem blockchain technology has.


Let’s continue👇

Integration of Renewable Energy Sources

If we continue with the example of Bitcoin, our topic will be the energy resources used for electricity production. For this reason, if the energy sources used to generate electricity are replaced with renewable energy sources, it will make a significant difference. You might be thinking like:

“Hey, bitcoin will consume the same amount of energy even with renewable energy sources. What's the difference?”

The answer is: Carbon footprint

Renewable energy sources like solar, wind, geothermal, or hydropower can be used to power blockchain mining operations. Blockchain businesses may dramatically lower their carbon footprint by moving away from fossil fuel-based energy. Creating relationships with renewable energy suppliers or investing in on-site renewable energy infrastructure guarantees that these enterprises have a cleaner energy source.

Transitioning to Proof of Stake (PoS) Consensus

As most of you might think, the Ethereum Merge was something big in 2022 for the reduction of the environmental impact of Ethereum. I am pleased about the Merge, as Ethereum is a project that has the potential to set an example for many projects.

Replacing PoW consensus with PoS has great potential to reduce carbon emissions. PoW techniques use a lot of energy, but PoS algorithms eliminate the need for resource-intensive mining entirely. PoS minimizes the processing resources required to maintain the blockchain by selecting validators to produce new blocks based on their stake and eliminates difficult mathematical challenges.

Carbon Offsetting Initiatives

Let me give a quick brief about carbon offsetting; Carbon offsetting includes processes that compensate for or neutralize carbon dioxide (CO2) emissions generated by investing in actions that reduce greenhouse gas emissions. The goal is to achieve a balance between emitted carbon and the reduction of an equivalent amount of carbon from the atmosphere.

Blockchain projects can also participate in carbon offset schemes to offset their emissions. They can invest in programs that minimize greenhouse gas emissions, such as renewable energy or forestry initiatives. Contribution to overall emission reduction efforts by blockchain projects is now very limited area. However, as web3 builders and environmentalists, I believe that we should take the responsibility to voice out about these topics in the web3 ecosystem 💪

Decentralization and Scalability Promotion

Promoting a distributed architecture is critical to lower energy usage and carbon emissions. Blockchain systems can allow more users to participate in mining by avoiding the concentration of mining power in energy-intensive places, lowering total energy consumption per participant and accompanying carbon emissions.

It will also be beneficial for environmental impact to draw attention to the fundamental 2 solution concepts such as off-chain transaction implementation and layer2 scaling solutions in the web3 ecosystem.

🚨Last but not least: Research and Innovation

All the solutions I mentioned above are actually a product of research and innovation. For this reason, no matter which sector or project, it should have a structure that is open to researchers and innovations. I believe it is necessary, especially for the web3 ecosystem where we have the opportunity to learn something every day.

Continuous research and innovation are essential for developing innovative ways to lower blockchain technology’s environmental impact. Exploring alternate consensus algorithms, creating more efficient mining processes, and refining blockchain protocols to reduce energy requirements while retaining security and decentralization are all part of this effort.


Whether related to blockchain technology or not, environmental impacts are still a significant problem for any industry. Unfortunately, blockchain technology also has a large share of these impacts.

The solutions I mentioned are based only on research and research-based foresight. Hopefully, solutions that will minimize environmental impacts will be implemented in all industries, especially web3 and crypto, as soon as possible.

Dear Reader,

Thank you for your time. I’d like to connect with you on social media as well.

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