Using your definition, Africa is already overpopulated.
Overpopulation is a natural part of survival, and is crucial to the evolution of a species. If every animal can survive, then the species will become weaker, and weaker over generations, as there is no competition to survive. Because different regions of the world have different rates of population growth, I doubt that every single region will be overpopulated at one time. Even when this does happen (in what I would think of as the unforeseeable future), the population will level out to an amount that can be supported using the resources of the land.
Overpopulation is a natural part of survival, and is crucial to the evolution of a species. If every animal can survive, then the species will become weaker, and weaker over generations, as there is no competition to survive. Because different regions of the world have different rates of population growth, I doubt that every single region will be overpopulated at one time. Even when this does happen (in what I would think of as the unforeseeable future), the population will level out to an amount that can be supported using the resources of the land.
