Today I read this article.....
https://www.ccn.com/bitcoins-electricity-usage-could-power-all-of-austria-in-the-future/It says in 2018 Bitcoin mining may consume 0.5% of worlds electricity in 2018.
I think this is because the mechanism "PoW" of Bitcoin. It costs a lot of power. And it looks like this statistics only includes Bitcoin, but there are still other coins can be mined.
I am sure for some people this is not environment-friendly and this could be used as the reason to restrict Bitcoin.
Will this affect the future of Bitcoin? or will there be any new energy-saving mining method for Bitcoin or other coins? How do you think about this?
Some claim that a proof-of-stake algorithm could prove to be more ecologically sound. Innovations like the Lightning Network could also scale this problem down. Sustainable energy sources such as hydroelectric power has Chinese mines drawing cheap surplus energy from hydroelectric dams. Solar powered mining farms are also a more environmentally friendly approach to the problems posed.