Question

Write an article on Population Explosion in 100-120 words

Answer 1

The point of this story is that the current growth numbers are historically very exceptional and untenable in the long term. The demographic growth rates are indeed on the decline worldwide and this paper will attempt to explain some of the mechanisms behind that process. That doesn’t change the fact, however, that the growth remains extraordinarily high and the decline in some regions very slow. This is especially the case in Sub Saharan Africa. In absolute numbers, the world population will continue to grow anyway for quite some time as a result of demographic inertia. This too will be further clarified in this paper.
























Declining fertility

Fertility is going down everywhere in the world, but it’s going down particularly slowly in Africa. A further decline remains uncertain there.   shows the evolution per world region between 1950 and 2010, plus the projected evolution until 2050. The numbers before 2010 illustrate three things. First of all, on all continents there is a decline going on. Secondly, this decline is not equal everywhere. And thirdly: the differences between the continents remain large in some cases. Asia and Latin America have seen a similar decline in fertility: from 5.9 children per woman in 1950 to 2.5 at the start of the 21st century. Europe and North America had already gone through the largest part of their demographic transition by the 1950’s. Their fertility level has been below replacement levels for years. Africa has indeed seen a global decrease of fertility, but the average number of children is still at an alarmingly high level: the fertility merely decreased from 6.7 to 5.1 children per woman.




Evolution of the total fertility rate by world region: 1950-2050

These continental averages hide a huge underlying diversity in fertility paths.  attempts to illustrate this for a number of countries. Firstly let us consider two African countries: the Congo and Niger. As was often the case in Europe in the 19th century, fertility was first on the rise before it started declining. In the Congo this decrease was more extensive, from around 6 children in 1980 to 4 children per woman today, and a further decline to just below three is expected in the next thirty years. Niger is the country where the fertility level remains highest: from 7 it first rose to an average of just below 8 children per woman in the middle of the 1980’s, before decreasing to just above 6.5 today. For the next decades a decline to 4 children per woman is expected. But that is not at all certain: it is dependent on circumstances that will be further explained in a moment. The demographic transition is after all not a law of nature but the result of human actions and human institutions.




Evolution of the total fertility rate in some countries between 1950 and 2010, and projected evolution until 2050.

Around 1950, Pakistan and Iran had more or less the same fertility level as Niger, but both countries have seen a considerable decline in the meantime. In Pakistan the level decreased slowly to the current level of 3 children per woman. In Iran the fertility decreased more abruptly, faster and deeper to below the replacement level – Iran today has one of the lowest fertility levels in the world, and a further decline is expected. The Iranian Revolution of 1978 played a crucial role in the history of Iran (Abassi-Shavazi et al., 2009): it brought better education and health care, two essential ingredients for birth control.

Answer 2

Population is a commonly used term to denote the number of people living at a place. The density of population in different parts of the world varies drastically owing to several reasons.

Uneven Distribution of Population

Population on earth is distributed unevenly. While there are certain countries that are facing the problem of population explosion others are sparsely populated. This is not just the case with the human population it also holds good for animals and other organisms. At certain places you will see greater number of animals while at some places you will hardly find any.

Things that Impact Population Density

The density of population in any area is calculated by dividing the total number of people by the area they are living in. The density of population differs in different places owing to several reasons. Some of the factors that influence the density of population in an area are as follows:
Climate
Places with extremely hot or cold climates are sparsely populated. On the other hand, those that enjoy moderate climate are densely populated.

Resources
The areas with good availability of resources such as oil, wood, coal, etc are densely populated while those that lack these basic resources are sparsely populated.

Political Environment
Countries that enjoy a stable government and a healthy political environment are densely populated. These countries attract immigrants from other countries there by populating the area. On the other hand, countries with poor or unstable government see many people leaving at the availability of any good opportunity elsewhere.

Standard of Living
First world countries such as U.S.A. attract a lot of immigrants as they offer much better packages and a good standard of living to people. People from different parts of the world immigrate to such countries. This is the reason why the density of population in such countries is increasing.
Conclusion

Even though certain places around the globe have low density of population, the overall population of the country has increased over the last few decades and is likely to increase manifolds in the times to come.