The
English demographer Thomas Malthus projected that the human population was
increasing at a rate far greater than the production of food supplies and that,
if not brought under control, mass starvation and poverty was inevitable.
Happily, Malthus’s predictions did not materialize in most industrialized
countries. By the middle of the twentieth century, thanks to the use of modern
plant breeding, improved agronomy, and the use of artificial fertilizers and
pesticides, there were food surpluses. By contrast, Mexico, and developing
countries in Asia and Africa, with their rapidly growing populations,
experienced pervasive hunger and malnutrition.
In
the early 1940s, the American agronomist Norman Borlaug, supported by grants
from the Rockefeller Foundation, initiated research to increase the production
of Mexican wheat. By 1945, he had developed varieties that were high yield and
disease resistant, and he doubled the wheat-growing season. By the 1960s,
Mexico was exporting one-half its wheat production. In the mid-1960s, the
Indian subcontinent was immersed in war and was experiencing famine and
starvation in an uncontrolled population increase. Borlaug transferred his
technologically advanced approaches of modern irrigation, pesticides,
high-yield crop varieties, and, perhaps most important, synthetic nitrogen
fertilizer, to the cultivation of rice crops in India and Pakistan—once again,
with remarkable success. Crop yields were increased and costs were reduced.
As
might be predicted, not all of Borlaug’s approaches were universally lauded.
The extensive use of chemical pesticides produced human toxicity and increased
cancer risks in animals. The emphasis on high-yield crop varieties decreased or
eliminated the cultivation of less productive plants, thus reducing
biodiversity, and in Brazil there was deforestation to increase farmlands.
Unlike the small or poor farmer who lacked funds to purchase fertilizer, gain
access to water for irrigation, or secure credit, large landowners were the
major beneficiaries, leading to greater income inequalities. Nevertheless, the
Green Revolution has been credited with preventing widespread famine and for
feeding billions of people. Borlaug was awarded the 1970 Nobel Peace Prize for
increasing the world’s food supply.
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