·World population is projected to increase from 6 to 9 billion in the next 50 years.
·In low-income countries more than a third of the population is under age 15, while in high-income countries less than a fifth is.
·The world’s population is growing by 200,000 people a day.
·Between 1980 and 2030, the population of low- and middle-income countries will more than double -- to 7.0 billion, compared with 1 billion for high-income countries.
·In the next 35 years, 2.5 billion people will be added to the current population of 6 billion.
·U.S. population has doubled during the past 60 years to 270 million and, at the current growth rate, is projected to possibly double again, to 540 million, in the next 75 years. Each year our nation adds 3 million people (including legal immigrants) to its population, plus an estimated 400,000 illegal immigrants.
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