opulation is decreasing rapidly. 800 lowland gorillas were killed in just one district of Cameroon. Human population has had an effect on the food web. For example, when human population increases, the growth of primary producers, such as plants and vegetables, decreases. Thus, species that live primarily off these primary producers are in danger of losing their source of food. A direct effect humans have had on the global level is the depletion of the ozone layer. With the destruction on forests, jungles, etc the hole in the ozone layer grows. This results in increased cancer rates, disruption of primary producers and extinction of terrestrial life. However, if an entire nation ceases some of these reckless activities, there can be hope for the future. For example, in the city of Tucson has the highest rate of teen pregnancy. With the Abstinence till Marriage campaign, the rate has drop. Therefore, lowering the rate of Arizona as a state thus lowering the rate of the United States and so on. ...
