how is the world addressing overpopulation
There are currently about 7 billion people in the worldâ¦and that number continues to rise. Overpopulation can be caused by a number of factors, including an increase in births, a decline in mortality rates, an increase in immigration, and/or an unsustainable habitat (in this case Earth) and depletion of resources.irst, the initial calculation was done by Thomas Sowell in 1984, when the world's population was 4.4 billion. Its now 7 billion and growing. It's irrelevant to discussions of overpopulation, because it does nothing to address resources or the distribution of them.