Mining cryptocurrencies and especially bitcoin is not a waste of energy resources. It’s resources and money invested in the most secure financial network on earth. Bitcoin professor Andreas Antonopoulos tackled this subject in recent Q&A on his Youtube channel. Even though Bitcoin is much smaller than the banking business, it’s probably also more efficient.
Antonopoulos sees mining as the effect of market conditions. It’s a profitable business and therefore there are developments in the optimization of the mining process. However, the biggest costs in mining comes from electricity. That’s why mining farms often chooseour natural resources of electricity over the traditional electricity net. I think about hydro generators in Russia and China, wind energy and solar energy in for example the United States.
“It is not a waste of money. It is money that has been well spend and invested by miners in order to buy us all the most robust system of immutability, security and protection against  spending double that has ever been invented.”

Fiat money has attributed value because a government declares it legal tender - it has no intrinsic value. ... Bitcoin has intrinsic value beyond the trust of its community. The Comunity of Crypto Currency Is Loving Bitcoin And Invest more and more money in Bitcoin Bitcoin doesn't lean on a system of debts, its value boils down to how effective it is as a medium of exchange.

All these companies were considered first to market and are all vastly superior and trusted names in their spaces. Bitcoin Is Trustable digit Currency. Can any one of you imagine any of those going away? In the cryptocurrency industry where there still is not a lot of trust, Bitcoin stands out as the de facto cryptocurrency  When you you think of or mention crypto, most people think of Bitcoin have staying power and act as a store of value. Thousands of cryptocurrencies have come out since Bitcoin emerged, yet Bitcoin truly is far and away the market leader even 12 years later.