Bitcoin network's carbon emission jumped 17% after China ban: Report
Bitcoin network’s proof-of-work mining consensus has been a topic of evironmental, social and governance (ESG) debates for a long time and a new study may only add to the growing controversy around BTC's carbon footprint.
A new research report titled “Revisiting Bitcoin’s carbon footprint” published in the peer-reviewed scientific journal Joules has highlighted that the Chinese crypto mining ban might not have contributed to the reduction in the carbon footprint of the Bitcoin network as propagated by many Bitcoiners, on the contrary, it has increased by 17%.
China was the primary hub for Bitcoin miners before May 2021 and accounted for more than 60% of the total Bitcoin network hashpower. However, the blanket ban imposed by the government led to the migration of most of the mining farms out of the country. China’s BTC mining hashpower share fell from over 60% in May to near zero in August, with miners moving to the United States, Russia and Kazakhstan.
Crypto pundits predicted that the migration of miners out of China would not only make BTC mining more decentralized as well as greener but, the new Joule report shows otherwise. The new research report highlighted that the amount of renewable energy used to power BTC mining has declined from 42% to around 25% since last August.
Related: Georgia punches well above its weight for Bitcoin mining: Report
The study tracked the source of electricity powering mining operations to calculate the carbon emissions of the BTC network and found that the top crypto blockchain emits 65 megatons of carbon dioxide annually. The study concluded that miners in China were more renewable energy-focused than most of the top mining countries today.
Alex de Vries, one of the authors of the report,
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