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www-newscientist-com-3129		Bitcoin rival Chia 'destroyed' hard disc supply chains, says its boss | New Scientist			.html	text/html	1088	89	73	Bitcoin rival Chia 'destroyed' hard disc supply chains, says its boss | New Scientist Bitcoin rival Chia 'destroyed' hard disc supply chains, says its boss Chia, a cryptocurrency intended to be a "green" alternative to bitcoin has instead caused a global shortage of hard discs. Read more: 'Green' bitcoin alternative Chia is leading to hard disc shortages Hoffman says that if all hard discs sold in a year – which could hold data totalling roughly 1 zettabyte, or 1 billion terabytes – were used exclusively for mining Chia, it would still use less than 1 per cent of the energy currently used by bitcoin. Aggelos Kiayias at the University of Edinburgh, UK, says it is vital to analyse new cryptocurrency technologies to see if the resources they require, such as vast numbers of hard discs, justify the benefit.	./cache/www-newscientist-com-3129.html	./txt/www-newscientist-com-3129.txt