Moving towards the 21st century, a large number of people are nowadays expressing a deeply growing concern about the explosion of population. In fact, it is widely believed that there is a sharp increase in the population of the main cities of the world, and overpopulation has become a challenging task for the nations to manage. As far as I am concerned, there has been a highly problematic issue, and this raises the question in relation to its causes and potential solutions to cop with. Therefore, some major points will be addressed in the following paragraphs.