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Joseph Robinette Biden is an American politician who served as the 47th vice president of the United States from 2009 to 2017. He represented Delaware in the U.S. Senate from 1973 to 2009. A member of the Democratic Party, Biden is the presumptive Democratic nominee for the 2020 United States presidential election, running against incumbent Donald Trump. Biden unsuccessfully sought the Democratic nomination in 1988 and 2008.
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Cryptocurrency, NFTs and the metaverse threaten an environmental nightmare – here’s how to avoid it

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theconversation.com

As concerns rise and hearings are held in the US about the cryptocurrency industry’s effect on the environment, it’s time to address blockchain’s poor sustainability record.

The first port of call should be changing how transactions on the blockchain operate – a move which could cut its energy usage by 99.99%.

A cryptocurrency is a digital representation of value that, unlike traditional money, isn’t issued by any central bank or agency.

Cryptocurrencies are powered by blockchain technology, which allows the exchange of virtual coins like bitcoin and ether. Cryptocurrency mining is the process of creating new coins by solving complex mathematical problems.

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