1. IGCSE Population Review and Revision 40 slides, 20 minutes; sit back and enjoy…..

4. Population Change The Population Formula Natural Population Change = Birth Rate (BR) – Death Rate (DR)

8. Mozambique – An LEDC

9. The UK – An MEDC

11. Population Explosion

12. Individual Decisions This explosion occurred largely in LEDCs and results from millions of individual decisions that are influenced by the characteristics of the places people live.

13. LEDC Population Trends and Issues High birth rates and falling death rates leading to rapid population growth – the population explosion Youthful populations

16. Youthful Populations Death rate maybe be falling in LEDCs but life expectancy is still low – the result when combined with high BR is a youthful population

18. Youthful Population Pyramid

19. Overpopulation Issues

20. Overgrazing and Overcultivation As seen in the Sahel region of Africa including Darfur in western Sudan

21. Deforestation and Soil erosion Again think Mato Grosso, Amazonia (Brazil) the Sahel (Darfur)

22. Overcrowding and the growth of Shanty Towns Favelas in Brazil (Rio de Janeiro) Busties in India, e.g. Mumbai Slums in Jakarta

24. Traffic Congestion And Rio once again – think of the road to Barra

25. Crime and Lawlessness

27. Youthful Populations Many young people (with a high youthful dependency ratio) puts pressure on schools, taxes, families; and exacerbates problems associated with rapid population growth and over population in LEDCS – this can hinder development

30. MEDC Population Trends and Issues Ageing population in MEDCs result from long life expectancies , low fertility rates and the legacy of the post-war baby boom

33. Post-war Baby Boom

34. Example case studies where the issues of an ageing population are happening now. Italy, UK, Germany, (western Europe), Japan, South Korea Maybe even China???

35. Ageing Population Pyramid

39. Completing the formula - Migration Population change within an area needs to consider both natural change (BR-DR) and migration (add those who move in and subtract those who move out)