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An employee among mining rigs at the Evobits crypto farm in Cluj-Napoca, Romania

Technology

Quantum computers could slash the energy use of cryptocurrencies

Mining cryptocurrencies like bitcoin could be done using quantum computers, cutting their electricity use by 90 per cent

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Ethereum closed a big security hole with its energy-saving update

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Technology

Cryptocurrency Ethereum has slashed its energy use by 99.99 per cent

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Why the tech apocalypse of 2022 was largely a good thing

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Why the tech apocalypse of 2022 was largely a good thing

Comment

A physical representation of bitcoin on a chip

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Emissions from mining a single bitcoin have increased 126-fold

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Image of a bitcoin in a cloud of emissions

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Bitcoin has emitted 200 million tonnes of CO2 since its launch

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Man holding laptop next to bank of computer equipment

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Plan to cut Ethereum energy use sees miners switch cryptocurrencies

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An Ethereum office

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Ethereum Merge: What will the radical update mean for cryptocurrency?

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A cracked bitcoin token

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If cryptocurrencies are unhackable, how do they keep getting stolen?

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Mandatory Credit: Photo by Moises Castillo/AP/Shutterstock (12786687d) Bitcoin sign is displayed on the window of a cell phone store in San Salvador, El Salvador, . The government of El Salvador on Monday rejected a recommendation by the International Monetary Fund to drop Bitcoin as legal tender in the Central American country Bitcoin, San Salvador, El Salvador - 02 Feb 2022

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What will the crypto crash mean for 'bitcoin nation' El Salvador?

El Salvador has invested heavily in bitcoin and related infrastructure in a bold plan to build its economy around the cryptocurrency, but now its value has plummeted

Analysis

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Cryptocurrency mining is still on the rise despite huge price drops

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Will bitcoin succeed in the Central African Republic? Probably not

Analysis

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Why is the UK government getting into NFTs and is it a good idea?

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Will bitcoin help or hinder Ukraine's fight against Russian invasion?

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