Why is global population increasing?


Components of population growth?


Natural increase
- About 82m people are added to the population of the world annually
- 95% of the natural increase is in developing countries


Fertility
- Total fertility rate
(TFR) for world is 2.5
(TFR) exceeds 5 in sub-saharan africa and 2 or less in many europe countries


Mortality
-Infant mortality rate
-Number of deaths of kids under 1 year old
per 1,000 births
- IMR is 5 in developed countries and 80 in sub-saharan africa