Population Growth
Two basic factors control population growth in a given period: a society's birthrate and its life expectancy. Life expectancy relates to a third factor, mortality, the percentage of the population that dies in a given period. In the late 1900s the world's birthrate actually decreased. However, because mortality also decreased and life expectancy greatly increased, the world population topped 6 billion in 2000 and continues to grow.
The last four centuries have brought a dramatic increase in the world's population. Two basic factors control population growth in a given period: a society's birthrate and its life expectancy. Birthrate, also known as fertility, is the number of children born per thousand people in a year. Life expectancy is…>> (read more)
Population Growth in the News
THE SOURCE: "Failing Human Fertility and the Future of the Family" by Philip Longman, in The Family in America, July 2007.
THERE'S HEAVY COMPETITION for the biggest…>> (read more)
Yes, the looming "senior tsunami" of retiring Baby Boomers will swell the retiree population in Sun Belt states. But according to a new Brookings Institution report, many of the…>> (read more)
Despite the recent housing market slowdown, home prices and rents remain out of reach for many Washington-area residents, especially those with physical and mental disabilities, elderly people who can…>> (read more)
Population Growth Statistics
