Source: www.newamerica.net
UNITED STATES, October 13, 2010, by Phillip Longman: “The world faces a population bomb,” we often hear. Is it true? Yes, but it will be a boom of old people.
It’s true that the world’s population overall will increase by roughly one-third over the next 40 years, from 6.9 to 9.1 billion, according to the U.N. Population Division. But this will be a very different kind of population growth than ever before — driven not by birth rates, which have plummeted around the world, but primarily by an increase in the number of elderly people. Indeed, the global population of children under 5 is expected to fall by 49 million as of midcentury, while the number of people over 60 will grow by 1.2 billion. How did the world grow so gray, so quickly?
One reason is that more people are living to advanced old age. But just as significant is the enormous bulge of people born in the first few decades after World War II. Both the United States and Western Europe saw particularly dramatic increases in birth rates during the late 1940s and 1950s, as returning veterans made up for lost time. In the 1960s and 1970s, much of the developing world also experienced a baby boom, but for a different reason: striking declines in infant and child mortality. As these global baby boomers age, they will create a population explosion of seniors. Today in the West, we are seeing a sharp uptick in people turning 60; in another 20 years, we’ll see an explosion in the numbers turning 80. Most of the rest of the world will follow the same course in the next few decades.
Eventually, the last echoes of the global baby boomers will fade away. Then, because of the continuing fall in birth rates, humans will face the very real prospect that our numbers will fall as fast — if not faster — than the rate at which they once grew. Russia’s population is already 7 million below what it was in 1991.Worldwide, there is a 50 percent chance that the population will be falling by 2070, according to a recent study published in Nature. By 2150, according to one U.N. projection, the global population could be half what it is today.