In this article, the author considers the role of white-tailed deer in Pennsylvania.

This webpage defines carrying capacity and talks about how overpopulation and excessive use of natural resources may already be taking its toll.

The purpose of this publication is to show how conservation agriculture can increase crop production while reducing erosion and reversing soil fertility decline, improving rural livelihoods and restoring the environment in developing countries.

This brief article about carrying capacity defines the term and explains what has happened when people tried to use farming techniques in they thought were effective, but did not pay attention to how their local environments functioned.

This website, created by The Food and Agriculture Organization of the United Nations, discusses the impact of population growth on a country's ability to feed its inhabitants.

This website and video, created by The Center for Biological Diversity, demonstrate the link between human population increase and mass extinction rates.

The Population Reference Bureau informs people around the world about population, health, and the environment, and empowers them to use that information to advance the well-being of current and future generations.

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