1950s: Animal scientist C. R. Henderson helps New York dairy cattle breeders become world leaders in applied genetics. The key is artificial insemination, which creates a larger number of milk-producing cows.
1960s: The Green Revolution is a worldwide attempt to increase food production by creating plant varieties more responsive to specific fertilizers. It results in a higher yield of food, but there are concerns over health issues and over political control of which farmers are allowed to grow more crops.
1990s: ' 'FlavrSavr" tomatoes—genetically engineered for a longer shelf life—are introduced into American grocery stores. Few consumers are impressed and some worry that the produce.....
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