For the past year a company that “mines” cryptocurrency had what seemed the ideal location for its thousands of power-thirsty computers working around the clock to verify bitcoin transactions: the grounds of a coal-fired power plant in rural Montana
Some want the government to step in with regulation.
Anne Hedges with the Montana Environmental Information Center said that before Marathon Digital showed up, environmental groups had expected the coal-fired power plant in Hardin, Montana, to close. Some say the solution is to switch from proof-of-work verification to proof-of-stake verification, which is already used by some cryptocurrencies. With proof of stake, verification of digital currency transfers is assigned to computers, rather than having them compete. People or groups that stake more of their cryptocurrency are more likely to get the work — and the reward.
“All crypto communities should work together, with urgency, to ensure crypto does not further exacerbate global warming, but instead becomes a net positive contributor to the vital transition to a low carbon global economy,” the accord states. Companies argue that cryptocurrency mining can provide an economic incentive to build more renewable energy projects and help stabilize power grids. Miners give renewable energy generators a guaranteed customer, making it easier for the projects to get financing and generate power at their full capacity.
Pennsylvania’s Department of Environmental Protection is a partner in the work, which uses relatively new technology to burn the waste coal more efficiently and with fewer emissions. Left alone, piles of waste coal can catch fire and burn for years, releasing greenhouse gases. When wet, the waste coal leaches acid into area waterways.
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