Thanks to Steve Kurtz for this article. See http://www.bbc.co.uk/news/science-environment-12338901
UN ‘concerned’ by world population growth trends
By Camille Ebden BBC News
The world population growth rate must slow down significantly to avoid reaching unsustainable levels, says a new UN report.
To have a reasonable chance of stabilising world population, fertility must drop to below “replacement level”.
It must then be maintained at that level for an extended period, says the report.
This replacement level is the fertility level at which a population replaces itself from one generation to the next.
The world population is already poised to reach 7 billion later this year and this figure potentially could double to 14 billion by 2100 if action is not taken.
“Even countries with intermediate fertility need to reduce it to replacement level or below if they wish to avoid reaching unsustainable population levels.” End Quote Hania Zlotnik Director, UN Population Division
This is of particular concern for the least developed countries worldwide, which are growing at the fastest rate and are already the most vulnerable to famine.
The UN Population Division have produced six projections of potential future population change based on different changes to fertility level and other factors.
In the medium scenario, world population peaks at 9.4 billion in 2070 and then starts to decline.
However for this to happen, fertility needs to decline significantly in most developing countries.
To read the full article, click here: http://www.bbc.co.uk/news/science-environment-12338901
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