Drought weakens pine and fir trees

Twelve million trees across California recently have died from a lethal mix of bugs and long-term drought. Needle-covered trees are unable to secrete the sticky resin to fight off bark beetle infestations.
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Twelve million trees across California recently have died from a lethal mix of bugs and long-term drought. Needle-covered trees are unable to secrete the sticky resin to fight off bark beetle infestations.