And they may compete in a new monetary system that moves away from the petrodollar and all of its costly externalities: a neutral Bitcoin standard that plays to the strengths of open societies, does not depend on dictators or fossil fuels, and is ultimately run by citizens, not the entrenched elite.
An extensive article explaining the future of Bitcoin mining using fossil fuels.
The future of Bitcoin mining forces us to consider what tradeoffs we are willing to make for the continued growth of the network. Mining blocks in a world with mass Bitcoin adoption will require orders of magnitude more energy than present. There is nothing inherently immoral about that, but it does present a challenge in the pursuit of a multi-trillion dollar market capitalization.