The world is becoming an overly crowded place. The population of the world has doubled in the last 40 years and this absolutely may cause poverty and misery. The affects of overpopulation on human society are many. In early, early years population growth was not a serious problem although families were crowded. This is because of the variety of different environment factors such as disease, famine, and war. These three had a large role in keeping human population under control since the beginning of the time.
Sickness and disease has played an effective role in decreasing population. Lots of the sickness was due to contaminated food and water. In the healthiest regions, one child in ten died during the first year of life. Epidemic diseases were more terrible, and killed more people than any war in history and could affect on the world in all areas. It seemed that when population became over crowded an epidemic disease such as influenza, small pox and plague would break out.
Above all there were not enough knowledge and facilities to cure many diseases. People may die because of only a small wound. Lots of women died when they want to give birth to their babies. Today with our current medical technology such as vaccines and antibiotics those diseases are not seen any more.
Famine is another great controller of population. When a famine strikes an area only the few will be able to survive and all would die because of hunger. The major cause of famine is changing environment conditions. The weather or climate in any particular environment can change and affect what people eat. One change in the environment can affect agriculture and may cause famine for example lack water, extreme heat and on the other hand a flood can do opposite.