Forest bugs seen aided by creeping climate change | Reuters India

And the U.N.'s Food and Agriculture Organization (FAO) said in a 2010 study that it noted "no significant trend" in global insect and disease outbreaks in the world's forests from 1990 to 2005. But that may be partly down to a lack of data.
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Moderate climate change is likely to promote tree growth and mean more timber, according to a report from the U.N. panel of climate experts. "Consumers will experience net benefits, while producers experience net losses," it said in a 2007 report.