Bitcoin mining means more than just emissions. Hardware piles up, too. Everyone wants the newest, fastest machinery, which causes high turnover and a new e-waste problem. Alex de Vries, a Paris-based economist, estimates that every year and a half or so, the computational power of mining hardware doubles, making older machines obsolete. According to his calculations, at the start of 2021, Bitcoin alone was generating more e-waste than many midsize countries.
