Spanish eco-friendly miners use pig shit to mine bitcoins.
https://ift.tt/fFa3e4Q
Sustainable mining is increasing [https://triggeredreviews.com/2022/01/27/spaniards-use-pig-poop-to-provide-clean-energy-for-bitcoin-mining/](https://triggeredreviews.com/2022/01/27/spaniards-use-pig-poop-to-provide-clean-energy-for-bitcoin-mining/)
Cryptocurrency
