UN Study Reveals High Environmental Cost of Bitcoin Mining and Calls for Sustainable Practices
According to a detailed study published by the United Nations University on October 24, 2023, Bitcoin mining has a substantial environmental footprint that raises urgent concerns. The study reveals that Bitcoin mining consumes an enormous 173.42 Terawatt hours of electricity globally between 2020 and 2021, much of which depends heavily on fossil fuels — specifically, coal accounts for 45% and natural gas 21% of the mining energy mix.
The carbon emissions from Bitcoin mining are equivalent to burning 84 billion pounds of coal or running 190 natural gas power plants continuously. To offset this carbon footprint, about 3.9 billion trees would need to be planted, covering an area roughly the size of the Netherlands. Furthermore, the water consumption equates to filling 660,000 Olympic-sized swimming pools, and the physical land used by mining operations is 1.4 times the size of Los Angeles.
Top countries leading Bitcoin mining between 2020 and 2021 include China, the United States, Kazakhstan, and Russia, among others. With 67% of the electricity powering Bitcoin mining coming from fossil fuels, these emissions pose a serious challenge to achieving climate goals outlined in the Paris Agreement.
The study recommends shifting focus toward more energy-efficient cryptocurrencies and enhancing government policies to regulate and mitigate the environmental damage caused by mining activities.
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This report highlights the urgent need for the crypto industry and regulators to collaborate on solutions that balance technological growth with environmental responsibility.