The cryptocurrency bitcoin now uses up more electricity a year than the whole of Argentina, according to recent estimates from the University of Cambridge.
That’s because the creation of a bitcoin, in a process called mining, is achieved by powerful computers that work night and day to decode and solve complex mathematical problems.
The energy these computers consume is unusually high. Police in the UK recently raided what they believed to be an extensive indoor marijuana-growing operation, only to discover that the huge electricity usage that had aroused their suspicions was actually coming from a bitcoin-mining setup.