Rory Cellan-Jones explores two industries - one old, one new - trying to "green up" their operations.| www.bbc.com
A warning on NatWest's banking app warns customers to beware of cryptocurrency scams.| www.bbc.com
Wells Fargo, America's third largest bank, said the service would be available for wealthy clients.| www.bbc.com
Bitcoin emissions in China exceed the total emissions of the Czech Republic and Qatar, study says.| www.bbc.com
Jake got addicted to trading cryptocurrency and lost more than £1m of money that was not his.| www.bbc.com
The price of Bitcoin fell below $34,000 for the first time in three months after China imposed fresh curbs.| www.bbc.com
The initial decision made by Tesla in March to accept Bitcoin caused an outcry from environmentalists.| www.bbc.com