Energy Efficiency Alone Does Not Make Crypto Mining Greener
Crypto mining has become significantly more energy-efficient in recent years, particularly in the Bitcoin network. Newer generations of application-specific integrated circuits (ASICs) can perform more computational work while consuming less electricity per unit of hashrate. However, this improvement does not automatically make crypto mining greener.
The environmental impact of Bitcoin mining depends on various factors beyond individual machine efficiency. These include total network hashrate, mining difficulty, electricity sources, carbon intensity, hardware turnover, and how mining facilities interact with electricity grids. Research published in 2026 examined whether efficiency improvements can trigger additional resource use through the Jevons Paradox.
The Jevons Paradox suggests that improvements in resource efficiency can sometimes increase overall resource consumption because the resource becomes cheaper or more productive to use. Applied to Bitcoin, lower electricity consumption per terahash could make additional mining capacity economically viable rather than simply reducing total electricity demand.