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tjic
on Oct 31, 2016
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NASA Scientists Suggest We’ve Been Underestimating...
Crop yields continue to climb.
http://www.wri.org/sites/default/files/uploads/cereal_yields...
flukus
on Nov 4, 2016
[–]
That looks like a decline and stagnation to me.
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http://www.wri.org/sites/default/files/uploads/cereal_yields...