Image: Nick Barclay / The Verge A tentative proposal to tax cryptocurrency mining to raise funds for climate action took off during a United Nations climate conference that’s set to come to a close today. A levy on energy-hungry crypto mining, at $0.045 per kilowatt-hour (kWh) of electricity used, could generate $5.2 billion in revenue annually, according to a report released last week by the Global Solidarity Levies Task Force, led by Kenya, Barbados, and France. The Bitcoin network is estimated to use more electricity annually than a majority of the world’s countries do individually. The idea is that a climate tax could reduce emissions by incentivizing mining firms to clean up their operations. And it could provide desperately needed funding to help less affluent... Continue reading…