200 years ago, world population was less than 1 billion people. During the next hundred years world population increased by half a billion and finally known an incredible growth in the last century going from 1.5 billion people in the late 19th century to over 7 billion in the early 21 century. This great increase was possible due to an increase of life quality and progress in technology allowing lower birth death, as it was earlier in history. But the earth is not expendable, it has his own limits and we had already reached these limits, overexploiting resources and not being able to reuse them or at least only a few (worldwide, only 1% of the energy come from renewable resources while 38% comes from oil). Overpopulation starts to …show more content…
However this same technology is used nowadays to regulate the human populations. Indeed, thanks to sciences and discoveries, women are able to control their birth rate with the birth control pill in the developed, but there is still a lot of work remaining to do with the developing and non-developed countries that still have a high average birth rate (on average 7 children in developing countries while 2.1 in developed countries, Cunningham&Cunningham, pp 84-88 in chapter 4, 2011). However, some countries like China have established some rules: the one child policy. This helps regulate and slows down population growth. All the same, technology is increasing standards living, which had led to women education. This means that women are more considered in society and are given the opportunity to make studies and have great jobs, which imply they will be earning more money, and need fewer children to help feeding the family. Moreover, as they spend more time at work they will be having children later, which imply fewer children until they are not able anymore to give birth. All of these concepts rely in the I=PAT