The statistics associated with this type of growth are particularly striking: "Human beings took more than 3 million years to reach a population of 1 billion people...The second billion came in only 130 years, the third billion in 30 years, the fourth billion in 15 years, the fifth billion in 12 years..." (Southwick, p....
1. Henry M. Morris, Appendix 6 (Baker Book House; Grand Rapids, 1984). This book givesmany more examples of population growth rates, considerationsof disease, war, famine. etc. Available from the PO Box 2667, El Cajon, CA 92021.
2. Ian T. Taylor gives his own population estimates consistentwith those of Morris in .
3. author of a very interesting book, "The Politicians: thingsof heaven and things of earth" has detailed estimates ofpopulation growth rates calculated by a different method thangiven by the above formula. Long's overall conclusions, includedon his web page, are similar to those presented above.
• Despite having one of the oldest family programs among developing countries, India is performing relatively poor in controlling the population ‘explosion’ and enhancing women-child welfare compared to countries with a similar history of population growth....
As our population grows, the needs of the population become bigger.
They have successfully controlled their population growth which population transition from high birth rate to low birth rates in a short period of time.
This growth rate is used to predict the direction of an economy.
The advancement of populations is measured using the demographic transition theory which consists of four main phases, with unique characteristics that countries are grouped within.
[tags: Demographic Shifts, Population Growth]
Human population World Population Growth Essay growth is becoming a huge issue in our world today. The population is increasing rapidly. The reason that it is becoming a concern is
Free population growth papers, essays, and research papers.It is also a reflection of the population growth trend continued in the post-World War II period characterized by rapid growth of several Southwestern metropolitan cities.
Jul 04, 2010 · This is a guest post by Gary Peters, a retired geography professor with a long time interest in population issuesSee our Revision Policy for further info and see for yourself population growth essay today. All papers are 100% unique Why does that matter. We provide essay writing services can be your dissatisfaction with the specific standards. Why should you choose us.
Case: City’s population: Growth. A city has 10,000 residents. Its population grows at the rate of 10% per annum, what’ll be its total population after 5 years?"...Assume that C = 2 and x = 2, which is equivalent to saying that the average family has 4 children who later have families of their own, and that each set of parents lives to see all their grandchildren. For these conditions which are not at all unreasonable, the population at the end of 5 generation would be 96, after 10 generations, 3,070; after 15 generations, 98,300; after 20 generations, 3,150,000; and after 30 generations, 3,220,000,000. In one more generation (31) the total would increase to 6.5 billion.
"The next obvious question is: How long is a generation? Again, a reasonable assumption is that the average marriage occurs at age 25 and that the four children will have been born by age 35. Then the grandchildren will have been born the parents have lived their allotted span of 70 years. A generation is thus about 35 years. Many consider a generation to be only 30 years. This would mean that the entire present world population could have been produced in approximately 30 x 35, or 1,050 years.
"The fact that it has actually taken considerably longer than this to bring the world population to its present size indicates that the average family is less than 4 children, or that the average life-span is less than 2 generations, or both. For comparison, let us assume then that the average family has only 3 children, and that the life-span is 1 generation (i.e., that C = 1.5 and x = 1). Then...in 10 generations the population would be 106 after 20 generations, 6,680; after 30 generations, 386,000; and after 52 generations, 4,340,000,000...At 35 years per generation, this would be only 1,820 years. Evidently even 3 children per family is too many for human history as a whole."