Climate change has become an important issue over the years due to concerns over environmental changes caused by the emission of greenhouse gasses into the atmosphere. Conversations have even reached the crypto space, and blockchain technology is being considered a potential tool to reduce carbon emissions.
Cryptocurrencies like Bitcoin (BTC) and Ether (ETH) that use the proof-of-work (PoW) mining algorithm have come under scrutiny due to their alleged energy expenditure. To see where this scrutiny comes from, it first needs to be known how much energy is used when mining PoW cryptocurrencies.
Unfortunately, estimating the amount of energy necessary to mine Bitcoin and other PoW cryptocurrencies cannot be calculated directly. Instead, it can be estimated by looking at the network’s hash rate and the power usage of the mining setups of expensive graphics cards.
Initially, Bitcoin could be mined with a basic computer, but as the network matured, the mining difficulty increased,...
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https://cointelegraph.com/news/blockchain-s-environmental-impact-and-how-it-c...
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