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Aspen the question: What is killing the trees? – NAU

When you envision the fall colors in Flagstaff, are you imagining a beautiful grove of aspens with their yellow-ish orange leaves, dancing in the wind? Aspens and other deciduous trees are an autumn staple—generating tourism revenue, Instagram-worthy content and important biodiversity. They are a considered a keystone species in the conifer-dominated western U.S. and the

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