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This undated photo provided by the U.S. Forest Service in December 2018 shows underside of ponderosa tree bark that was attacked by a western pine beetle. Aerial surveys of forested land in Arizona and New Mexico show large swaths of dead trees following an unusually dry winter that aided pests such as bark beetles. (U.S. Forest Service via AP)

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Tease photo

Aerial surveys show dead trees in Arizona, New Mexico

Aerial surveys of forested land in Arizona and New Mexico show large swaths of dead trees following an unusually dry winter that aided pests such as bark beetles.