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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Brumar89 who wrote (826505)12/29/2014 11:33:49 AM
From: d[-_-]b2 Recommendations

Recommended By
Brumar89
FJB

  Read Replies (3) | Respond to of 1578238
 
Evolution of trees proves 2000ppm if ideal and matches the historical average.



To: Brumar89 who wrote (826505)12/29/2014 5:01:12 PM
From: J_F_Shepard  Read Replies (1) | Respond to of 1578238
 
And you don't understand the mechanism proposed for the effect of severe drought on trees.......with lack of water the leaves of the tree shrivel and cause the pores in the leaves to shrink thereby preventing CO2 from being absorbed....... The abstract your clinging to proposes no mechanism.....only the finding that the trees they found in the tar pit had reduced amounts of carbon.


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