I suppose we should start with the most obvious question. That is, of course, what is overpopulation? Overpopulation is something that occurs when the population of a species exceeds the land’s ability
to support them. While that is the true definition, most of the time overpopulation
refers only to the relationship between humans and the Earth. In the context
of humans, overpopulation occurs when the population density is so great that it actually impairs the quality of life
of the people, causes environmental damage, or long term shortages of essential resources.
These essential resources included are clean air and water, food, shelter, warmth, or anything else needed to survive
in the given area. Overpopulation can be written as a ratio. This ratio is population over resources. Many things are capable
of causing overpopulation such as increases in births, decline in morality rates, or depletion of resources.
A FLASH MOVIE ABOUT POPULATION GROWTH