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New study 10-40% of crop gains may be due to co2
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Greg K
Posted 10/13/2021 23:03 (#9267832)
Subject: New study 10-40% of crop gains may be due to co2


Ran across this study that claims amounts of crop yield gains since the 1940's that are due to increased co2 in the atmosphere. Says 10% for corn, 30% for soybeans and 40% for wheat for every 1 part per million of co2. Saw the headline on Epoch Times but I'm too cheap to pay to read it so followed the link to the actual paper.

https://www.nber.org/papers/w29320

Edited by Greg K 10/13/2021 23:05
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