[throwaway19841]

> Only at zero emissions for a source this would stop being true

There are plenty of crypto operations that have their own, renewable power sources that operate in a closed zero emission fashion.

[jhgb]

> renewable power sources that operate in a closed zero emission fashion

If you mean operational emissions, then this is a trivial statement. If you mean total emissions, then this is a wrong statement, unless these people manufactured their own generators using zero emissions in the process.