January 28, 2008

Would We Complain about Too Much O2?

One thing I've never heard addressed by the DAWG crowd: Isn't the added CO2 good for plants?

Terri at I Think ^(Link)... links to an item on treehugger.com that says the additional carbon dioxide provides a longer and more productive season for trees.

Scientists have been at a loss to account for why the traditional autumnal spectacle of disheveled trees and changing colors has gotten gradually pushed back over the last few years. Some have attributed the delayed autumnal senescence to increasing global temperatures; others have attributed it to the length of day.

David F. Karnosky, a professor at Michigan Technological University, believes rising atmospheric levels of carbon dioxide may be to blame — and, perhaps surprisingly, to thank. Karnosky explains that delaying senescence may in fact be good news for forestry industries since it prolongs the trees' growing season. The extra carbon dioxide taken up in the autumn, in addition to that taken up during the growing season, would also boost their productivity.


Deleterious Anthropogenic Warming of the Globe Posted by jk at January 28, 2008 5:19 PM
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