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Gulf News: Crypto’s dirty secret: How mining it is hurting the planet — and farms

Bitcoin’s energy use per dollar generated now exceeds that of mining copper or gold

Every Bitcoin transaction has to be validated through a process called “mining,” where thousands of computers compete to solve mathematical puzzles. The first to solve it adds a block to the blockchain and earns a reward.

The catch: this process devours electricity. According to UN University’s 2025 report, Bitcoin’s energy use per dollar generated now exceeds that of mining copper or gold. The study found that for every dollar of Bitcoin created between 2020 and 2021, around $0.35 worth of environmental damage occurred — more than most metals or industrial products.

Much of the electricity powering these “mines” comes from coal- or gas-fired plants, especially in countries with cheap power. That means more greenhouse gases — and fine-particle air pollution — are released into the atmosphere.

Water is another overlooked casualty. Mining farms need massive cooling systems to prevent overheating. Whether drawn from rivers, desalination plants, or power-station cooling systems, that water use adds up — and competes with agriculture in regions already facing scarcity.

Investigations found that some farmers were running illegal mining operations inside agricultural facilities, tapping subsidised electricity intended for irrigation and cooling. Officials warned that such practices damage soil quality, risk electrical fires, and undermine food-security goals.

(Gulf News more…)


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