[Ost-news] Higher CO{-2} May Imperil Grasslands

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Higher CO{-2} May Imperil Grasslands  
Scientists warn of dire consequences for grazing areas  
[http://www.commondreams.org/archive/2007/08/28/3461/][1]  
by Alan Zarembo

Rising levels of carbon dioxide in the atmosphere might be contributing to the conversion of the world’s grasslands - critical for livestock grazing - into a landscape of useless woody shrubs, according to a study released Monday.

By artificially doubling carbon dioxide levels over enclosed sections of the Colorado prairie, researchers created a dramatic rise in Artemisia frigida, commonly known as fringed sage. 0828 03

[read more][2]

    [1]: http://www.commondreams.org/archive/2007/08/28/3461/ (http://www.commondreams.org/archive/2007/08/28/3461/)
    [2]: http://oilsandstruth.org/higher-co-2-may-imperil-grasslands

URL: http://oilsandstruth.org/higher-co-2-may-imperil-grasslands