Dirtiest US coal-fired power plant applies for EPA exemption
The Colstrip plant, located in eastern Montana, has the highest emission rate of fine particulate matter out of any coal-burning plant in the nation.
Watch this documentary about two of the biggest draglines ever built. The Captain was the first of the big draglines, built by Marion Power Shovel for the Captain Mine in Illinois. It was then rivalled by the Big Muskie, owned...
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