Population Size, Fertility And Mortality, And Age...

The world and most regions and countries are experiencing unprecedentedly rapid demographic change. The practical example of this change is the huge expansion of human population. Over four billion been added to the world population since 1960. In addition, the projection highly increased for the next half century will expect a highly divergent world. The stagnation or a potential decline in parts of the developed regions, other demographic processes are also undergoing extraordinary change: Women’s fertility has dropped rapidly and life expectancy has increasing to new level. Fertility and mortality have led to very young populations in high fertility countries in developing world and increasingly older populations in the reach or developed world in past trends. Contemporary societies are now at very different stages of their demographic transitions. Therefore, in my understanding this discussion topic key trend in population size, fertility and mortality, and age structures in general during these transitions. The focuses are the century not only from (2011 to 2050) which covers the period of most rapid global demographic transformation. We have seen from the history that after centuries of very slow growth, the global population reached one billion in 1800. In addition, the modern expansion of human numbers started then, increasing at low at a slow percentage but more steadily pace next 150 years became to 2.5 billion in 1950. During the second half of the twentiethShow MoreRelatedUs Population Essay example1104 Words   |  5 PagesCharacteristics of the U.S. population in 2025 The United States is the third most populated country in the world. This country holds about 4.5% of the world’s population. The U.S. population is currently estimated to have 308.7 million persons. 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