CO2 and tree growth

Even a small increase in atmospheric CO2 seems to prompt amazing growth in some tree varieties.

The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.

Aspen trees

That is the finding of a new study of natural stands of quaking aspen, one of North America’s most important and widespread deciduous trees. The study, by scientists from UW-Madison and the University of Minnesota at Morris (UMM) and published today (Dec. 4) in the journal Global Change Biology, shows that elevated levels of atmospheric carbon dioxide during the past 50 years have boosted aspen growth rates by an astonishing 50 percent

Source:http://www.news.wisc.edu/17436

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