Letters | As Hong Kong embraces Web3, let’s pay attention to bitcoin’s sustainability
- Readers discuss how to turn bitcoin mining into a green industry, the baby-unfriendly environment in Hong Kong, and the eco-friendliness of designated garbage bags

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During the 2008 financial crisis, bitcoin emerged, offering a decentralised alternative to traditional financial systems. Bitcoin’s algorithm-driven trust mechanism has fostered an ecosystem that integrates bitcoin generation, distribution and trading.
Therefore, the question arises: can bitcoin mining contribute to a sustainable world? We believe that it can, by becoming a green industry through three key methods.
Some bitcoin miners already use energy mixes including varying levels of sustainable energy and migrate seasonally to use renewable energy efficiently.