One Bitcoin transaction is about half a tonne of CO2. (I don't know about this system, is it using the Bitcoin blockchain?) https://digiconomist.net/bitcoin-e

One Bitcoin transaction is about half a tonne of CO2. (I don't know about this system, is it using the Bitcoin blockchain?) https://digiconomist.net/bitcoin-energy-consumption/ https://digiconomist.net/bitcoin-energy-consumption/