I do say that with certainty. And I didn't claim that proof of stake has no environmental impact - it just doesn't have more impact than, for example, a web server.

If I start a carbon-neutral wing of an oil company, of course it doesn't make an oil company carbon-neutral. However, that doesn't impact the real value of other companies that actually are carbon neutral.

Similarly, Ethereum is, by far, not a "green" tech, and their usage of proof of stake can easily and reasonably be called greenwashing if they don't also severely limit the usage of POW.

Proof of Stake, though, is not a power-hungry tech, period. And it is a means for crypto to become, overall, a nominal energy user. There are other chains out there (cardano, algorand, nano, and many others) that don't use PoW and that use reasonable amounts of energy.

I appreciate your passion for the environment. But misrepresentation does not help your case, though misrepresentation may help those your fight.