It started with a mysterious humming noise that sounded like a wave “but 100 times more annoying,” according to local reports. Then residents of an estate in Alberta, Canada did some investigating and found out that the weird racket was actually a Bitcoin mining power plant—one that was running without anybody’s knowledge. The power plant had been set up by Vancouver-based data center and power firm Link Global to mint new tokens of the world’s biggest cryptocurrency. The problem: they built the thing without obtaining planning permission. Now, Alberta's Utilities Commission (AUC), which regulates electricity and ... (full story)