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Bitcoin and similar blockchain technologies consume more electricity than entire nations, and may prevent the world from achieving the climate change mitigation targets under the Paris Agreement, a study has warned. The study, published in the journal Energy Research & Social Science, evaluates the financial and legal options available to lawmakers to moderate blockchain-related energy consumption and foster a sustainable and innovative technology sector. Researchers recommend an approach that imposes new taxes, charges, or restrictions to reduce demand by users, miners, and miner manufacturers who employ polluting technologies, and offers incentives that encourage developers to create less energy-intensive/carbon-neutral blockchain. "Digital currency mining is the first major industry developed from blockchain, because its transactions alone consume more electricity than entire nations," said Jon Truby, an assistant professor at Qatar University. "It needs to be directed towards .

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