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Providing Insight
Into Climate Change
CO2 and Plant Growth
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8 Articles

Tree and Forest Functioning in an Enriched CO2 Atmosphere

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This abstract shows that elevated levels of atmospheric CO2 causes a long-term biomass increase of 130% for conifer trees and 49% for deciduous trees in studies not involving stress components. However, stimulation of photosynthesis by elevated CO2 in long-term studies was similar for conifers (62 %) and deciduous trees (53 %).

The Effect of Long-term Atmospheric CO2 Enrichment on the Intrinsic Water-use Efficiency of Sour Orange Trees

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This study evaluated the water use efficiency of orange trees at Phoenix, Arizona in response to elevated atmospheric CO2. The trees increased their water-use efficiency by 80% in response to a 300 ppmv increase in CO2, which is identical to the long-term CO2-induced increase in the trees' production of wood and fruit biomass. This suggests there could be little to no change in total water-use as trees' productivity increases with the air's CO2 content .

In Praise of CO2

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Lawrence Solomon shows that increasing CO2 in the atmosphere has caused the Earth's biomass to significantly increase. The planet is the greenest it's been in decades, thanks to man-made CO2 emissions!

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