![]() ![]() It is a poor indicator as populations with many old people (MEDCs) have higher CDRs than countries with more younger populations.CDR- Crude death rate is the number of deaths per thousand people in population.Doubling time=70/percentage growth rate. ![]() This is the time it takes for a population to double in size.GFR- General fertility rate is the number of births per thousand woman aged between 15-49 years old.ĪSBR- Age-specific birth rate is the number of births per 1000 women of any specific year group. TFR- Total fertility rate is the average number of births per woman of child-bearing age.CBR does not calculate the age and sex structure of the population.Total number of births/total population X 1000 = CBR.CBR- Crude birth rate is the number of live births per 1000 people in a population.Examine the relationship between population dynamics related to sustainable development.How do environmental value systems affect population dynamics? Give examples to support your answer.To what extent have population policies been effective in their aims?.How do models help our understanding of human dynamics?.In what ways might the solutions explored in this topic alter your predictions for the state of human societies and the biosphere some decades from now?.How are the issues addressed in this topic of relevance to sustainability or sustainable development?.How does your own value system compare with others you have encountered in the context of issues raised in this topic?.What value systems can you identify at play in the causes and approaches to resolving the issues addressed in this topic?.To what extent have the solutions emerging from this topic been directed at preventing environmental impacts, limiting the extent of the environmental impacts, or restoring systems in which environmental impacts have already occurred?.What strengths and weaknesses of the systems approach and the use of models have been revealed through this topic?. ![]()
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