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10 de des. 2023

 https://www.whitehouse.gov/ostp/news-updates/2022/09/08/fact-sheet-climate-and-energy-implications-of-crypto-assets-in-the-united-states/ 



The United States is estimated to host about a third of global crypto-asset operations, which currently consume about 0.9% to 1.7% of total U.S. electricity usage. This range of electricity usage is similar to all home computers or residential lighting in the United States.



Global electricity generation for the crypto-assets with the largest market capitalizations resulted in a combined 140 ± 30 million metric tons of carbon dioxide per year (Mt CO2/y), or about 0.3% of global annual greenhouse gas emissions. Crypto-asset activity in the United States is estimated to result in approximately 25 to 50 Mt CO2/y, which is 0.4% to 0.8% of total U.S. greenhouse gas emissions. This range of emissions is similar to emissions from diesel fuel used in railroads in the United States.




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