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I was recently preparing my contribution to the  System Dynamics Conference presenting our comprehensive quantitative GLU Model (global land use). At the same time I am repeatedly  confronted with the argument that in order to save the world we need industrialized farming with the use of pesticides, fertilizer, and high precision farming, because otherwise we would not have enough yields to feed the world and thus would need more deforestation. Well, while the quantitative model shows that without major changes we couldn't feed the growing populations and its growing demand for animal food anyway, this qualitative model compares the general levers we have. 

This model is further described with the presenter. A grey paper is now available:


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