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The U.S. Forest Service is spending nearly $19 million to fight invasive species threatening the nation’s forests, including several in the Mountain West.
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Whitebark pine trees are found in cold, windy, high elevation areas in western North America. It's a relatively hardy species of tree, known for being one…
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A planned natural gas pipeline is being challenged by opponents who say its approval might violate the Endangered Species Act.The pipeline would run from…