By Chris Dorrell Cryptocurrencies will face more scrutiny on their environmental impact after the University of Cambridge released a new open access tool to track electricity usage from cryptocurrencies, starting with Ethereum. The new Cambridge Blockchain Network Sustainability Index (CBNSI) hopes to provide “cutting edge insights into the current and historical environmental impact of various blockchain networks.” So far, the tool has tracked electricity consumption from Ethereum, the second largest cryptocurrency by market capitalisation. The CBNSI’s data tracks Ethereum’s consumption both …

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