Study claims Bitcoin uses as much energy as Ireland, but experts don't agree. The rise in popularity of Bitcoin and other cryptocurrencies has been met with growing concern about the energy usage required by the thousands of computing systems that power these virtual currencies.

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Study claims Bitcoin uses as much energy as Ireland, but experts don't agree. The rise in popularity of Bitcoin and other cryptocurrencies has been met with growing concern about the energy usage required by the thousands of computing systems that power these virtual currencies.