this post was submitted on 27 Jul 2025
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[–] qaz@lemmy.world 19 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

Yes, but that still means that the other half is fossil fuel.

Bitcoin mining's distribution makes it difficult for researchers to identify the location of miners and electricity use. It is therefore difficult to translate energy consumption into carbon emissions. As of 2025, a non-peer-reviewed study by the Cambridge Centre for Alternative Finance (CCAF) estimated that bitcoin consumed 138 TWh (500 PJ) annually, representing 0.5% of the world's electricity consumption and resulting in annual greenhouse gas emissions of 39.8 Mt CO2, representing 0.08% of global emissions and comparable to Slovakia's emissions.

I think people should really reconsider using PoW cryptocurrencies. Ethereum was able to reduce their energy consumption by 99.95% by switching to PoS and it's still doing fine. IMO Bitcoin is outdated technology that is just used as a pyramid scheme due to its name recognition.