Green | January 22, 2009 | 1 comment

Global warming threatens forests, study says - CNN.com

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Forests in the Pacific Northwest are dying twice as fast as they were 17 years ago, and scientists blame warming temperatures for the trend, according to a new study.

The study, to be released Friday in the journal Science, is the first large-scale analysis of environmental changes as contributing factors in the mortality of coniferous forests.

The data for this research was gathered by generations of scientists over a 50-year period at multiple sites in Oregon, Washington, California, Arizona, Colorado, New Mexico and southwestern British Columbia. Seventy-six forest plots, all more than 200 years old, were monitored by scientists doing some of the most rudimentary research -- counting trees.
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