Earlier quoted context omitted.
This global warming rhetoric against bitcoin is nonsense right? The current financial system doesn't run off as many or more computers in datacenters around the globe? I don't have objective numbers but I'd lay money credit card processing alone dwarfs bitcoin by a pretty good margin.
The global financial system can handle considerably more than three (3) transactions per second.
A future global system could have settlement on the blockchain. Like the current system does at far less regular intervals than the processing power of non-settled transactions.