The proposed expansion would make this the largest underground coal mine in the U.S. based on annual production. It would also result in more greenhouse gas emissions than any point source in the country.
This is another victory for environmental plaintiffs. In 2017, a federal judge ruled in favor of environmental protections and required OSM to conduct a proper analysis of the mine’s climate impacts. In the previous ruling the court found OSM had put its “thumb on the scale” by only considering the benefits of the mine and not the cost.
OSM’s subsequent 2018 environmental assessment was similarly flawed. It concluded the mine’s emissions would be insignificant because 240 million tons of greenhouse gases from the mine would appear small when compared to global greenhouse gas emissions. The 9th Circuit panel agreed with the conservation groups, saying this type of analysis would “predestine that emissions would appear relatively minor, even though, for each year of its operation, the coal from this project is expected to generate more greenhouse gas emissions than the single largest source of greenhouse gas emissions in the United States.”
The case is now remanded to District Court to determine the appropriate legal remedy. Once the District Court issues a remedy order, the matter will go back to the Interior Department to address the mine’s climate impacts and decide whether or not to allow the expansion to go forward.
Signal Peak’s Bull Mountains Mine has long concerned environmentalists for drying up waterways as well as its air, water, and climate pollution. Most of the mine’s coal is exported through Canadian ports. Signal Peak was recently fined $1 million for worker and environmental safety violations by the Department of Justice and has faced multiple investigations for alleged financial crimes and worker exploitation.
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