https://www.theguardian.com/technology/2022/jan/30/how-do-we-solve-bitcoins-carbon-problem

The cryptocurrency consumes more energy than Norway. As countries consider copying China’s ban, experts disagree on whether a greener version is possible

When bitcoin mining company Bit Digital started shipping its energy-intensive computers out of China in early 2021, eyebrows were raised. “A lot of people thought we were being overly paranoid,” says chief strategy officer Sam Tabar, who helped relocate all of the company’s machines to the US and Canada.