I led them through a door to the side of the warehouse and up a staircase. In front of us is the world’s first waste—to-energy cryptocurrency mine. I have fans moving the total volume of the air out of the mine six times a minute. This keeps the miners in an operating environment that maintains their efficiency. The computers are processing so much information they can overheat without being kept cool or having enough fresh air. The rigs are stacked up to the ceiling on metal shelves and there’s a low hum from the computers. The air is moving like a wind tunnel, hot columns and fresh air
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