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World population growth is increasing,and is already causing many problems. It is projected to continue growing in some parts of the world whilst others stabilise, with some estimates putting the final population of the world as high as 12 billion (it is currently half that).
Managing population growth
Population growth brings with it many pressures. The environmental impacts are discussed below, however, there are many other effects of this rapid growth.
The main areas of rapid population growth are:
Asia, Africa and Latin America. These developing areas are moving through the demographic transition model from stage 2 to stage 3. In other words, during the second half of the 20th century their death rates fell, whilst the birth rates continued to be high. This was due to improving health care and sanitary conditions. As a result of the BR being so much higher than the DR, the population of these areas has exploded.
This population growth in the LEDC's could lead to a range of problems, which are listed below:
Urban areas will become increasingly overcrowded. Shanty towns will continue to grow, and people living there will do so in very poor sanitary conditions, which may well cause outbreaks of devastating diseases. (For more information on shanty towns see the settlement topic).
The increasing numbers of people in the cities will also cause more pollution and traffic…...