Farmers use soil, sun, water and nutrients that have existed for millions of years to produce food that sustains people around the world. But one often-overlooked aspect of farming is the evolution of agricultural technology.
Advancements in knowledge, biology and technology have enabled farmers to produce more food with fewer resources for 12,000 years. The technological advancements of recent decades make the gains of the previous 11,000 years seem small.
When agriculture began at the end of the Stone Age there were about 5 million people in the world. Few if any farmers were feeding people beyond their extended family.
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