Trees Won't Fix Global Warming - Yahoo! News: "The plan to use trees as a way to suck up and store the extra carbon dioxide emitted into Earth's atmosphere to combat global warming isn't such a hot idea, new research indicates.
Scientists at Duke University bathed plots of North Carolina pine trees in extra carbon dioxide every day for 10 years and found that while the trees grew more tissue, only the trees that received the most water and nutrients stored enough carbon dioxide to offset the effects of global warming.
These differences are key since the weather isn't always cooperative with human needs—if a drought takes hold, trees won't be able to do much in the way of carbon storage. 'If water availability decreases at the same time that carbon dioxide increases, then we might not have a net gain in carbon sequestration,' Oren said. "
Sunday, August 12, 2007
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