Well my understanding is that visa, MasterCard ECT. Are far more efficient in terms of energy and transaction time when compared to Bitcoin and Ether. Visa uses about a quarter of the power per 100,000 transactions.
So I would assume that would mean fewer data center computers to cool and therefore less water used per transaction
So there is demand for passenger service in the US, but as always we are hurt by our historic under investment in rail. I look forward to seeing the super liner replacements when they are announced.