cryptomining, and the trend will continue until global cryptocurrencies are better regulated, according

Instead, a substantial number of miners migrated to nearby Kazakhstan, as well as farther afield to the United States.In those countries, miners have been using more fossil fuels, mainly coal in Kazakhstan and natural gas in America.... “ It’s bad news for Bitcoin owners because their holdings just got more dirty, ” said Alex de Vries, a co-author of the paper.“ There was a lot of optimism that China banning Bitcoin mining would make mining more green, ” Mr.de Vries said.... Mining for Bitcoin

Cryptocurrencies have emerged as one of the most captivating, yet head-scratching, investments in the world.... For a long time, money has been thought of as something you can hold in your hand — say, a dollar bill. Currencies like these seem like such a simple, brilliant idea.... A government prints some paper and guarantees its value....