We are currently in a doubling spiral in which the world population
doubles in increasingly reducing time spans.
Individual countries have different doubling times. For example, it
will take 100 years for the population of the United States to double*,
whereas Kenya's doubling time is just twenty years. The world average
at the current rate is 47 years (World Population Data Sheet,
Population Reference Bureau).
TWICE the people in HALF a lifetime.
*Americans will experience a major upheaval well before then. It's
estimated that the population of the U.S. will increase 50% by 2050.
But prime farmland will have decreased by 13%, swallowed up by fast
growing urban development. For the first time in its history, that
country will be forced to import more food than it exports. Where
from? Are other countries going to stop having children in order to feed
Bear in mind that only 10% of the Earth's surface is arable land.
Land, what's more, which is being reduced and degraded every day
through erosion, urban development and a decline in the practice of
fallowing land (Conserving Land: Population and Sustainable Food
Production, Population Action International, 1995.).
TWO MILLION people are born to eat off that same land.
Click here to read about the dependence of modern food production on ever
dwindling supplies of phosphate rock.