Bitcoin mining consumes as much energy as 167 countries
Bitcoin mining around the globe last year consumed 154.9 billion kilowatt-hours (kWh) in total, or more than 167 countries combined.
Bitcoin mining refers to the computational process of solving as "cryptographic hash functions," similar to mathematical problems.
However, it cannot be done by just any computer but by special rigs used for cryptocurrency mining, commonly housing multiple graphics processor units or even application-specific integration circuits to accelerate the process.