The Limits of the Earth, Part 2: Expanding the Limits

Scientific American
The Limits of the Earth, Part 2: Expanding the Limits
Figure 2 - Food yields in the US and other developed nations are twice those of the world as a whole. If the world as a whole had food yields similar to those of the US, we would already have sufficient food production to meet the demand expected by 2050. Source: FAO
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