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{"id":2120740,"date":"2017-12-19T16:56:15","date_gmt":"2017-12-19T15:56:15","guid":{"rendered":"https:\/\/www.phonandroid.com\/?p=2120740"},"modified":"2023-12-19T09:54:12","modified_gmt":"2023-12-19T08:54:12","slug":"bitcoin-consommation-energetique-pourrait-causer-mort","status":"publish","type":"post","link":"https:\/\/www.phonandroid.com\/bitcoin-consommation-energetique-pourrait-causer-mort.html","title":{"rendered":"Le Bitcoin consomme tellement d’\u00e9lectricit\u00e9 qu’il pourrait en mourir"},"content":{"rendered":"

Le Bitcoin exige une consommation \u00e9nerg\u00e9tique incroyable pour fonctionner. Ce d\u00e9faut est l'un des principaux inconv\u00e9nients de la cryptomonnaie et pourrait m\u00eame mener \u00e0 sa mort. D\u00e9sastre \u00e9cologique selon ses d\u00e9tracteurs, son empreinte carbone ne cesse de s'accro\u00eetre. Probl\u00e8me : il n'est pas possible de la diminuer sans remettre en cause l'environnement Bitcoin entier.\u00a0\u00a0<\/strong><\/p>\n

\"bitcoin<\/p>\n

Le Bitcoin s'est trouv\u00e9 un ennemi de taille : lui-m\u00eame. La consommation \u00e9nerg\u00e9tique qu'il engendre est ph\u00e9nom\u00e9nale et remet son existence en question. D'apr\u00e8s une \u00e9tude de l'entreprise fran\u00e7aise Selectra, une unique transaction effectu\u00e9e en Bitcoin<\/strong> consomme l'\u00e9quivalent en \u00e9nergie d'une ampoule allum\u00e9e durant trois mois, soit environ\u00a0100 kilowattsheure (KWh). 500 fois plus qu'un paiement en carte bleue, indique l'AFP. Et au fur et \u00e0 mesure que la popularit\u00e9 du Bitcoin augmente, sa trace sur l'environnement aussi.<\/p>\n

Le Bitcoin et les cryptomonnaies en g\u00e9n\u00e9ral fonctionnent avec le principe du blockchain pour assurer la s\u00e9curit\u00e9 des transactions. Ces fameux blocs sont produits par de puissants ordinateurs qui fournissent une immense puissance de calcul afin de crypter les donn\u00e9es, qu'il faut ensuite d\u00e9crypter \u00e0 la fin de la cha\u00eene, demandant l\u00e0 encore une \u00e9norme puissance de calcul. Plus la valeur du Bitcoin augmente (son prix pourrait atteindre 400 000$ d\u2019ici 2019)<\/a>, plus les \u00e9quations \u00e0 r\u00e9soudre sont complexes et plus il faut donc de puissance de calcul et d'\u00e9nergie.<\/p>\n

Le minage des cryptomonnaies<\/a>\u00a0est le socle du syst\u00e8me : les mineurs s\u00e9curisent les transactions avec leurs ordinateurs et produisent et gagnent des Bitcoins ou autres ce faisant. “D\u00e8s lors que la valeur s'envole, le mineur va \u00eatre tent\u00e9 de d\u00e9penser beaucoup d'\u00e9nergie pour miner”, explique \u00e0 l'AFP Aurian de Maup\u00e9ou, co-fondateur de Selectra, selon qui “plus le Bitcoin rencontrera du succ\u00e8s, plus il sera \u00e9nergivore”. Or, on compte\u00a030 nouveaux investisseurs chaque seconde.<\/a><\/p>\n