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How bitcoin mining works, the most valuable cryptocurrency


How the mining of bitcoins, the highest value currency in the cryptocurrency market, works and what environmental obstacles it faces.

Bitcoin: reasons why it rises and falls in price 0:53

(CNN Spanish) -

Recently El Salvador adopted bitcoin as legal tender, and President Nayib Bukele also shared his ecological plans to mine bitcoins using renewable energy produced by the country's volcanoes.

The decision to convert bitcoin into a legal currency - like the dollar - was described as "historic" by Bukele.

The law, known as the Bitcoin Law, stipulates that "every economic agent must accept bitcoin as a form of payment when it is offered to him by whoever acquires a good or service.

One day after the new law was approved, Bukele shared his plan to mine bitcoin in El Salvador "with very cheap energy, 100% clean, 100% renewable, 0 emissions from our volcanoes."

To do this, the president said he had instructed the state geothermal company La Geo to develop a bitcoin mining plan using geothermal energy.

Shortly after, the president of El Salvador shared a video on Twitter showing from 804 meters away a new well for the facility to mine bitcoins.

  • Nayib Bukele and her laser eyes in support of bitcoin on Twitter

But what is bitcoin mining and how does it work?

Here we explain how the process works and we tell you why it has been strongly criticized by environmentalists.

Advantages and disadvantages of bitcoin in El Salvador 4:16

What is bitcoin mining?

In short, mining is the process in which new bitcoins are created, which is carried out by computers that solve complex mathematical problems - which cannot be solved by hand - thus requiring large amounts of computational power and energy. .

New bitcoins are introduced when miners process blocks of transactions, which occur every time someone sends or receives bitcoins.

In the last 24 hours alone, approximately 212,000 transactions were made, according to Coindesk.


Miners place transactions in blocks and add them to a kind of public record known as a



When miners add new blocks to the


, new bitcoins are created, but to add a new block, miners must mathematically validate the transactions to make sure they are correct and avoid duplication.

As a consequence, miners create a more secure bitcoin network.

  • Adopting bitcoin in El Salvador can cause legal and economic problems, says IMF

By adding a new block of transactions, miners are rewarded with bitcoins.

In 2012, the reward was 25 bitcoins, in 2016 it was 12.5 bitcoins, and by February 2021 the reward was 6.25 bitcoins for each new block mined.

However, to get the reward you not only have to solve a mathematical problem, but you have to be the first to do it.

This process is known as Proof of Work (PoW).

"Bitcoin mining will continue to be necessary until the last bitcoin has been issued," reads the blog

There is a finite number of bitcoins that is 21 million and to date 18.5 million have been mined.

Bitcoin already consumes more energy than Argentina 0:52

The environmental impact of mining

The more miners there are, the difficulty of obtaining a reward increases.

When bitcoin was created, the difficulty level to mine a new block for the blockchain was 1 and by June 2021, it is 21 trillion.

According to Investopedia, bitcoin mining is so competitive that it can only be done profitably by more modern ASIC miners - a kind of supercomputer specifically created to mine bitcoins - since the cost of the power consumption of a GPU or an ASIC conventional may be higher than earnings.

However, even if you have a capable computer, it will hardly be able to compete with a mining



pool mining,

which is a group of miners that combine their computing power and that divide the bitcoins mined among their participants.

  • Bitcoin price skyrockets after El Salvador said it will start accepting it as legal tender

Cryptocurrency mining has been questioned by environmentalists as bitcoin mining consumes a ton of computing power and electricity, raising concerns about cost to the environment.

The data, published in the bitcoin energy consumption index of Digiconomist, a site specialized in digital currencies, reflects the environmental footprint that worries some experts

China is considered the largest bitcoin miner, and recently took steps to restrict the use of cryptocurrencies.

According to a study by Nature Communications, energy consumption by bitcoin mining in the Asian country will generate more than 130 million metric tons of carbon emissions by 2024. This exceeds the total annual production of carbon emissions in the Czech Republic and Qatar in 2016.

  • Bitcoin already consumes more electricity than Argentina and there are concerns about its climate impact

However, the environmental impact of bitcoin mining has not only concerned governments and environmental organizations but also some of the largest Bitcoin investors in the United States, such as Michael Saylor, CEO of software company MicroStrategy (MSTR). and who is part of the newly formed Bitcoin Mining Council (BMC).

Saylor, who owns a sizeable share of bitcoin, met with North America's top miners to "promote transparency in energy use and accelerate sustainability initiatives around the world."

Elon Musk attended the meeting and called the effort "potentially promising."

Saylor was one of several investors who applauded the adoption of bitcoin in El Salvador, as well as Bukele's environmental plan for mining the cryptocurrency. 

Following the BMC meeting, Fred Thiel, CEO of Marathon Digital Holdings, spoke to CNN Business and indicated that “outside of China, in reality, most of the energy consumed is moving more towards carbon neutrality in the industry. bitcoin miner ».

Chinese government puts more pressure on crypto miners 1:08

Mariana Vanni, Merlin Delcid, and Michelle Toh contributed to this report.

EnvironmentalBitcoinEconomy El Salvador

Source: cnnespanol

All news articles on 2021-06-15

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