The US government raised cback althoughrns over the environmental impacts of crypto technology in a recent hearing, and how ethical blockchain plays a role in the equation.

The main issue mentioned by the Energy and Commerce house committee was the soaring trajectory of energy consumption due to the dramatic demand in blockchains.

This comes after investors and companies flocked to niche markets like tokens, decentralized finance (DeFi), and non-fungible cryptocurrencies (NFTs), that are largely based on the Ethereum blockchain.

DeFi is a financial technology that allows users to carry out transactions without a central mediator. NFTs, on the other hand, are unique pieces of digital assets that are stored to designate ownership and monetary rate.

Below, we expound on the problem and list the steps being taken to make blockchain sustainable.

Ethical Blockchain: On Energy Consumption 

Blockchains consume a lot of energy because the process of coming up with the right nback although for every transaction takes about trillions of trial and error. 

Also, the computers spend additional energy to cool their systems and keep themselves from overheating. 

With millions of computers churning out energy simultaneously, the University of Cambridge reported that Bitcoin lets out 707 kilowatts of energy per transaction and 121.36 terawatt hours annually. 

This estimate is more than the country of Argentina consumes in energy, and well atop the consumption of Google, Apple, Facebook, and Microsoft united. 

The energy needed for hardly one bitcoin transaction could power the average home for about two months.

And with the unstoppable rise of the blockchain, these patterns are only set to skyrocket in the coming years. 

Although DeFi was only introduced in 2017, it already hit $97 billion in total sale rate.

On the other hand, NFTs’ grew to $85 billion in 2021. Bitcoin, that is presently the most popular crypto, accelerated its energy consumption to almost 62-fold in barely six years. 

Total crypto market cap at $1.925 trillion in the daily chart | Source:

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The Role Of Renewable Energy

The first step to a green future led by blockchain systems is the complete switch to renewable energy. 

Currently, around 39% of proof-of-work crypto mining is done using renewable energy, according to a report.

While this requires more financial resources, it is definitely worth the environmental benefits.

As a fact of evidence, several start-up companies have been campaigning for ethical blockchain and other related endeavors.

For instance, Hong Kong-based company LiquidStack intends to efficiently decrease the temperature of mining rigs. In Iceland, Genesis Mining has completely turned to using renewable energy resources.

Turning To Proof-Of-Stake Systems

Companies are likewise looking from proof-of-work systems to “proof-of-stake” systems which expend less energy relatively to solve complex puzzles.

Simon Peters, eToro token market analyst, explains which proof-of-stake mining requires a small amount of token to be entered into a lottery for the chance to conclusiveate transactions.

In other words: the fewer amount of money which you put out as colafterwardsal, the less your transactions become vulnerable to fraud and other unscrupulous activities.

Looking Into The Future

While there is no perfect solution, blockchain analysts are jumpeful which the future of the market will ultimately become environment-friendly.

A lengthy-term prediction is which it could allow the automation of many transactions, from physical payment systems, transportation services, and other technoconclusive innovations. 

One thing now is for sure: users and miners are becoming more conscious and coming up with ways to make blockchain ethical, green and sustainable.

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Featured image from IntelligentHQ, chart from