Ch 21: Major Issues for the Global Environment

About This Chapter

Watch our video lessons to understand the issues facing the Earth's environment. Use the short quizzes to measure your understanding of climate change, air pollution and deforestation.

Major Issues for the Global Environment - Chapter Summary

These video lessons offer information about the differences between groundwater and surface water and outline depletion problems related to both types. You can learn about the five central greenhouse gases and hear how their high levels are changing the Earth's climate. Deforestation means cutting down trees with no plan to replant in that area. Find out about the consequences, including extinction of species, higher levels of greenhouse gases and interruption of the water cycle.

This chapter will also introduce you to the benefits and drawbacks of industrial development around the world. Although economic affluence abounds, you can learn about the many environmental challenges those emerging economies are now facing. You can also find out why some diseases are increasing on the planet because of environmental changes. Some of the essential topics included in this chapter appear below:

  • Actions affecting the water supply
  • Enhanced greenhouse effect
  • Climate changes around the world
  • Types, sources and controls of air pollution
  • Consequences and causes of deforestation
  • Damage to the Earth's rangelands
  • Environmental effects caused by emerging nations' industries
  • Diseases related to changes in the environment

Well-informed instructors teach these lessons, including those concerning central global environmental issues. Each lesson contains print transcripts, in addition to the video presentations, and you can use them as many times as you like. There's a corresponding quiz at the end of each lesson that can provide immediate feedback about your learning.

10 Lessons in Chapter 21: Major Issues for the Global Environment
Test your knowledge with a 30-question chapter practice test
Water Resource Issues: Activities Affecting the Water Supply

1. Water Resource Issues: Activities Affecting the Water Supply

This video lesson describes water resources issues such as aquifer depletion, overdrawing surface waters and salinization of irrigated soil. You will also learn about the impacts of activities affecting water resources.

Greenhouse Gases and the Enhanced Greenhouse Effect

2. Greenhouse Gases and the Enhanced Greenhouse Effect

In this video lesson, you will learn about the five main greenhouse gases and how their unnaturally high concentrations are leading to the enhanced greenhouse effect and global climate change on Earth.

Global Climate Change: Effects and Mitigation Strategies

3. Global Climate Change: Effects and Mitigation Strategies

In this video lesson, you will learn about the potential effects of global climate change. You will also learn how some are working to better understand climate change in order to slow the rate of temperature increase on Earth.

What Is Air Pollution? - Definition, Sources & Types

4. What Is Air Pollution? - Definition, Sources & Types

In this video lesson, you will learn about the sources and types of air pollution. You will be able to identify the six classes of air pollutants identified by the Environmental Protection Agency and the Clean Air Act of 1970.

Controlling Air Pollution: How Developed & Developing Nations Differ

5. Controlling Air Pollution: How Developed & Developing Nations Differ

In this lesson, you will learn how air pollution is controlled in developed and developing nations. You will also learn about the U.S. Clean Air Act and how it has evolved over the years to address air pollution in the United States.

Deforestation: Definition, Causes & Consequences

6. Deforestation: Definition, Causes & Consequences

Deforestation is the clearing of trees without the intent of replacing them or reestablishing a stand of trees. Learn reasons for deforestation and discover the consequences of this process in all forests, including tropical forests.

Rangelands: Uses and Degradation

7. Rangelands: Uses and Degradation

Rangeland covers much of the land area of the world. The lack of rainfall in these areas makes it useful land for grazing livestock and provides environmental benefits. Learn about the uses of rangeland and the potential for rangeland degradation.

Industrial Development of Emerging Nations and the Environment

8. 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.

Emerging Diseases Linked to Environmental Change

9. Emerging Diseases Linked to Environmental Change

In this video lesson, you learn about why some diseases are increasing on Earth due to environmental changes. You'll also see examples of different types of diseases that are responding to environmental changes and how they are becoming more prevalent.

Future Environmental Concerns: Population, Food Supply, Energy & Pollution

10. Future Environmental Concerns: Population, Food Supply, Energy & Pollution

There are many issues that raise future environmental concerns. Learn how the environment may be impacted by the growing population and food and energy needs of the world, as well as growing pollution concerns as we move through the 21st century.

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

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Support