Global warming blamed for aspen die-off across the West -- latimes.com
The trees, which were already under duress, are being killed by insects that thrive as the climate changes. Scientists call it Sudden Aspen Decline. [get it--the acronym is "SAD"]Sept '09 story
[Is carbon dioxide killing off local aspens, or is it some combination of drought, frost, bugs, fungus, browsing, fire exclusion, etc?]
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