By Sarah Leslie

Environmental Science Webpage

Population Graph         Overpopulation has been a major concern of scientists for a long while now. Yet, with the escalation of natural and man made disasters and an increasing number of humans on earth, it is now a priority. The increasing human count is actually passing the earth's carrying capacity which can be seen in the depeletion of natural resources. With more people comes the need for more food, therefore more sea and fresh water food, as well the necessity to have a place to live leading to the consumption of wood for building. Above all of these continuous needs is the need for water. Someplaces far inland there's a scarcity of water and in most places water is polluted by humans. There is the knowledge that due to global warming there are glaciers melting all around the world, but that water flows into the oceans making it undrinkable and a risk. Then, due to pollution by industries and everyday driving, animal and plant lives are being killed off and the environment is getting weaker; in the case of the ozone layer. There has been much prediction as to how many people will inhabit the earth years later but not so much as to what can be done. Yes, there's research on how to preserve the environment; but lets face it, one of the leading problems for the environment is humanity. No one wants to pick and choose how to reduce the amount of people because it seems so inhumane, so what do we do?


1804 = 1 billion

1927 = 2 billion

1974 = 4 billion

2008 = 6 billion

2028 = 8 billion

  • From 1900 to 2000, world population grew from 1.6 billion persons to 6.1 billion. However, while world population increased close to 4 times, world real gross domestic product increased 20 to 40 times.

  • We lose one or more entire species of animal or plant life every 20 minutes—some 27,000 species a year.
  •  Only 0.3% of the planet’s water is available for human use.
  • Americans are only 5% of the world’s population, yet we consume 25% of the world’s resources.


James Hopkins

Anup Shah

National Geographic: Overpopulation

Human Clock Counter

Document: Linking Overpopulation and Environment

Overpopulation Video- Math?

 WOA: World Overpopulation Awareness