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Ch 23: Ecological Problems in the US

About This Chapter

Use these video lessons to enhance your knowledge of problems caused by ecological imbalance. Learn about environmental issues ,including overpopulation, deforestation and pollution.

Ecological Problems in the U.S. - Chapter Summary

In this chapter, video lessons introduce you to current ecological issues, such as deforestation, overpopulation and pollution. You will learn about the causes, impact and possible solutions.

Our instructors go into detail about the Industrial Revolution and how the changes it brought about altered our ecosystem. Another lesson looks at environmental ethics and human values as applied to these issues. After watching these videos, you should be ready to:

  • Define ecological imbalance
  • Name types and stages of ecological succession
  • Explain the trend towards urban population growth
  • Differentiate between overpopulation and overconsumption
  • Analyze human impact on the environment
  • Explore the causes of declining biological diversity
  • Describe industrial ecology and give examples
  • Name some human causes of eutrophication

Our brief video lessons are taught by expert instructors who make these lessons entertaining and informative. They break down each topic into understandable segments, and clarify their points through the use of examples. At the end of each lesson, you can assess your knowledge with a multiple-choice quiz.

13 Lessons in Chapter 23: Ecological Problems in the US
Test your knowledge with a 30-question chapter practice test
What is an Ecological Imbalance? - Definition & Explanation

1. What is an Ecological Imbalance? - Definition & Explanation

In this lesson, you will learn the definition of ecological imbalance and explore some examples of ecosystems that have shifted to a state of imbalance. Test your new knowledge at the end with a quiz.

What Is Ecological Succession? - Definition, Types & Stages

2. What Is Ecological Succession? - Definition, Types & Stages

How does an ecological community develop? Ecological succession describes this process of development, identifying how the community began as well as how and when it stabilizes.

Urban Population Growth and Compact Development

3. Urban Population Growth and Compact Development

The population growth rates in urban areas are on the rise, and as more people move to cities, there are many problems that can occur. We will discuss several issues associated with this growth and also a potential method for minimizing the effects.

Overpopulation vs. Overconsumption

4. Overpopulation vs. Overconsumption

How many people can the Earth support? In this lesson, we will explore population growth and some of the concerns associated with this growth, including overpopulation and overconsumption.

What Is IPAT? - Factors of the Human Impact on the Environment

5. What Is IPAT? - Factors of the Human Impact on the Environment

What do the letters IPAT have to do with the environment? Learn how this four-letter equation helps explain the environmental impact of different variables, including population, affluence, and technology.

Deforestation, Desertification & Declining Biological Diversity

6. Deforestation, Desertification & Declining Biological Diversity

When trees are lost due to deforestation, the result can be a drier climate and desertification or the transformation of the once fertile land to desert. Learn how deforestation and desertification can lead to a decline in biological diversity.

The Agricultural Revolution: Impacts on the Environment

7. The Agricultural Revolution: Impacts on the Environment

The Agricultural Revolution was a time of agricultural development that saw many inventions and advancements in farming techniques. Learn about the Agricultural Revolution and how this period impacted society and the environment.

The Industrial Revolution: Impacts on the Environment

8. The Industrial Revolution: Impacts on the Environment

The Industrial Revolution was marked by the introduction of power-driven machinery and ushered in a time of strong economic development. Learn how advancements made during the Industrial Revolution impacted the environment.

Industrial Development of Emerging Nations and the Environment

9. Industrial Development of Emerging Nations and the Environment

Industrial development has brought economic prosperity to a number of less developed countries. Learn about the environmental challenges and risks associated with these newly emerging national economies.

What Is Industrial Ecology? - Definition and Examples

10. What Is Industrial Ecology? - Definition and Examples

Industrial ecology is a young science that studies industrial systems with the goal of finding ways to lessen their environmental impact. Learn how industries are using industrial ecology to reduce the use of natural resources and generate less waste.

Pollution: Physical, Chemical & Biological

11. Pollution: Physical, Chemical & Biological

Pollution is the presence of unwanted substances in an environment. It is often the result of human interference. Learn about physical, chemical and biological pollutants and see examples of each.

Human Causes of Eutrophication

12. Human Causes of Eutrophication

Eutrophication occurs when a body of water becomes overly enriched with nutrients. While this can happen naturally, accelerated eutrophication is typically the result of human activities. Learn about the human causes of eutrophication.

Environmental Ethics & Human Values: Definition & Impact on Environmental Problems

13. Environmental Ethics & Human Values: Definition & Impact on Environmental Problems

Environmental ethics take into consideration the moral obligations human beings have concerning the environment. Learn how environmental ethics and human values affect our ability to understand and solve environmental problems.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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