Bitcoin's role in the world's energy consumption is increasing.
https://www.dw.com/en/why-does-bitcoin-need-more-energy-than...
>Back at the start of 2017, Bitcoin was using 6.6 terawatt-hours of power a year. In October 2020, that was up to 67 terawatt-hours. Now a few months later, it has nearly doubled to 121 terawatt-hours, the Cambridge researchers found, enough to run their entire university for nearly 700 years.