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Western Colorado coal mine
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- 1Western Colorado coal mine breached methane limits nearly fourfold, state says▼Western Colorado coal mine violates methane caps nearly 4 times over, state says
State regulators say a coal mine in western Colorado emitted methane at levels nearly four times above its permitted cap. The finding raises questions about enforcement of Colorado's climate rules and the mine's compliance record. The report has drawn attention in regional coverage of methane pollution from coal operations and the state's efforts to curb greenhouse gas emissions from extractive industries.