https://www.reuters.com/article/us-el-salvador-bitcoin-energy/el-salvador-exploring-volcanic-bitcoin-mining-bukele-says-idUSKCN2DL2B1 >El Salvador's President Nayib Bukele said on Twitter on Wednesday that he has instructed state-owned geothermal electric firm LaGeo to come up with a plan to offer bitcoin mining facilities using renewable energy from the country's volcanoes.