Bitcoin less green since China ban, research suggests Published 1 hour ago Share close Share page Copy link About sharing Related Topics Climate change Image source, Getty Images Bitcoin has become less green since China cracked down on mining the cryptocurrency, new research suggests. Mining refers to the process of creating new bitcoins using banks of powerful computers. The share of renewable energy powering mining fell from 41.6% in 2020 to 25.1% last August as miners stopped using Chinese hydro and moved to the US, where gas supplies much of their power. Researchers estimate Bitcoin now causes carbon emissions comparable...