> If a proof-of-work consensus mechanism is operating on a small scale, it is exempt from having to meet sustainability standards, according to the provision. What qualifies as a small-scale operation has yet to be determined.<p>Cool. Let's exempt all blockchains that can be powered by a single windmill [1].<p>[1] <a href="https://forum.grin.mw/t/grin-is-pow-but-relatively-green" rel="nofollow">https://forum.grin.mw/t/grin-is-pow-but-relatively-green</a>