> If 90% of Bitcoin’s energy use would be from renewables its CO2 footprint wouldn’t be 45x as large as that of Google. Both Google (and Bitcoin) are optimizin

> If 90% of Bitcoin’s energy use would be from renewables its CO2 footprint wouldn’t be 45x as large as that of Google. Both Google (and Bitcoin) are optimizing for lower electrical costs - wherever that may be. Often this is associated with grids with hydroelectric power. Places like https://www.google.com/about/datacenters/locations/the-dalles/ https://www.google.com/about/datacenters/locations/the-dalle... The point isn't "this is how much CO2 google and bitcoin produce" but rather using the metric of CO2 footprint as a proxy for energy consumption to compare Bitcoin to Google to Facebook. Whatever Bitcoin's CO2 footprint is, overall Bitcoin is consuming about 45x more power than Google over the course of a year.