A new study shows that mining bans can have counterproductive effects, as they push miners to seek new jurisdictions that rely on fossil fuels.
A recent research published by Exponential Science has examined the complex effects of bitcoin mining bans on global carbon emissions. The research highlights how mining bans may not always produce positive environmental results.
The study, titled The Unintended Carbon Consequences of Bitcoin Mining Bans, reveals that bans could push miners to relocate their activities to other regions. Many of these regions use non-renewable energy, which could increase the global carbon emission of the entire Bitcoin network. According to researchers, the interaction between ban policies and environmental impact mainly depends on the source of electrical power in the destination country.
While it’s true that mining requires a lot of energy, this doesn’t automatically translate into carbon emissions or direct environmental damage. Everything depends on the energy source used: a coal-powered electrical grid will clearly produce more carbon emissions than one powered by hydroelectric energy. Furthermore, mining bans can have the unintended effect of driving the industry away from renewable energy sources, resulting in increased global emissions generated by the network.
Variable consequences based on geography
The influence of a ban on carbon emissions is closely tied to geographical factors. For example, according to the model proposed by Exponential Science, a ban in Kazakhstan could reduce global emissions by 7.63%. Conversely, a ban in Paraguay would lead to a 4.32% increase in emissions.
Some countries that rely on fossil fuels, like China, Russia and Malaysia, could see significant improvement in global emissions with a mining ban. Conversely, bans in many areas of North America or Europe could have contrary effects on the environmental landscape.
For example, a mining ban in Georgia or Kentucky, in the United States, could lead to a reduction in emissions. However, implementing bans in states like New York, Texas, Washington or California could worsen the environmental impact.
The China case
The study also examines the Chinese situation, where a ban on digital asset mining was implemented in 2021. Despite this, some mining activities continue clandestinely. The model suggests that a total cessation of activities in the Xinjiang province could reduce global annual emissions by 6.9%. However, a ban in the Sichuan region, where hydroelectric power is used, would increase emissions by 3.8%.
Regulation and sustainability
The study’s conclusions encourage thorough reflection by governments before introducing mining bans. According to Nikhil Vadgama, co-founder of Exponential Science, regulation must be informed by a clear scientific understanding of developing technologies. Inadequate policies could accidentally intensify pre-existing environmental problems.
The authors emphasize the importance of balancing sustainability with available energy in each nation or region. Globally, new mining operations in countries with access to clean energy, like Sweden, could help reduce the overall environmental impact.
