According
to the United Nations Population Fund, on
October 31, tomorrow, the population of the world will become seven billion
persons. That is remarkable!
When I was
born in 1938, the global human population was under 2.3 billion. So in my lifetime
the population of the world has tripled, and then some!
Population
Action International has an app on their website that calculates the world
population on any given day in the past. You can put in your birth date and quickly
get the estimate of “your number,” the population of the world on your
birthday. The link for “What’s Your Number?” is here.
(I am 2,267,750,937.)
It is
estimated that the world's population didn’t reach the one billion mark until
1804, just a little over 200 years ago. By 1927, 123 years later, the
population of the world became two billion. Then in just 33 years, in 1960, the
number of people on earth climbed to three billion.
Since February
1967, world population has doubled to reach the seven billion mark. (Actually,
the U.S. Census Bureau says that seven billion won’t be reached until February,
2012.) What will it be like, though, if the population doubles again in the same length
of time? That is unlikely to happen; estimates now indicate that even the nine billion
mark will probably not be reached until 2045 or later. Still, that is a number
fraught with problems.
How many
people can the earth sustain? It can be argued that the earth is not adequately
sustaining its seven billion people now. But the problem is largely a matter of
distribution, not resources. There is enough food for everyone, but some
(particularly many Americans) eat far too much, and hundreds of millions,
mostly in south Asia and Africa, have far too little to eat.
With the
growth of the population, there is a strain on other resources, too. And,
again, the U.S. with only 5% of the world population uses an extraordinarily
large share of the world’s natural resources.
As the
population continues to rise above seven billion, there will doubtlessly be
more and more struggle for limited resources: fresh water, food, oil, and the
like. As resources become scarcer, prices rise and more people face financial
problems. More troubling, in a world of shortages violence also becomes more
prevalent as nations, or smaller groups, seek to provide for their own.
Population
pressures and need for additional food and natural resources have been part of
the cause of wars, large and small, through the centuries, and the likelihood
of warfare increases as the population continues to increase. In addition, the
gap between the wealthy countries and the poor countries, or between the
wealthy and the poor within countries, leads to various acts of revolutionary
violence.
So the
fact that the world population is now 7,000,000,000 and counting is not good
news. But that is the situation we are in. And it is a matter about which we
all need to be concerned, supporting ideas and programs for dealing with the
problem in constructive ways.