Rory Cellan-Jones explores two industries - one old, one new - trying to "green up" their operations.| BBC News
A warning on NatWest's banking app warns customers to beware of cryptocurrency scams.| BBC News
Stay informed with the latest news, video, live updates and expert analysis about Cryptocurrency from across the BBC.| BBC News
Stay informed with the latest news, video, live updates and expert analysis about Bitcoin from across the BBC.| BBC News
The price of Bitcoin fell below $34,000 for the first time in three months after China imposed fresh curbs.| BBC News