Iran bans cryptocurrency mining for 4 months after blackouts

A visual representation of the digital cryptocurrency, Bitcoin.
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From the BBC World Service: Iran's President Hassan Rouhani told a cabinet meeting that the main cause of the blackouts was a drought that had affected hydroelectric power generation. But he also said that cryptocurrency mining, 85% of which is unlicensed, was draining more than 2 gigawatts from the grid each day.
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