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| Some data from internet
Production, yield and land use changes over time From 1961 to 2014, global cereal production has increased by 280 percent. ... The average cereal yield has increased by 175 percent since 1961. Today, the world can produce almost three-times as much cereal from a given area of land as it did in 1961.
Poupation has went up from about 3.3 billion to 7 billion. But consumed meat was about 6 times as high. So it like percison ag is keeping up with food demand and as said people are getting bigger/fatter.
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weather increasing yields
