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The populations of the developing nations are estimated to be growing at about 1.7 percent per year. For poor nations, rapid population growth can strain infrastructure and may impede development. For this reason, population control has at times been part of the development strategy of a number of nations.
FIGURE 21.1 The Growth of World Population, Projected to A.D. 2020
For thousands of years, population grew slowly.
From A.D. 1 until the mid 1600s, population grew at about .04 percent per year.
Since the Industrial Revolution, population growth has occurred at an unprecedented rate.