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Global Environmental Issues. 5 Main Environmental Issues Population Growth Poverty & Hunger Greenhouse Effect & Global Warming Thinning of the Ozone Layer.

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Presentation on theme: "Global Environmental Issues. 5 Main Environmental Issues Population Growth Poverty & Hunger Greenhouse Effect & Global Warming Thinning of the Ozone Layer."— Presentation transcript:

1 Global Environmental Issues

2 5 Main Environmental Issues Population Growth Poverty & Hunger Greenhouse Effect & Global Warming Thinning of the Ozone Layer Destruction of Rain Forests

3 Population Growth ~ 7 billion people on Earth Grows by 6 million each month = 150 each minute ~ 314 million in U.S. ~ 6.5 million in TN ~ 171,000 in Chattanooga, TN ~ 9,100 in Collegedale, TN

4 Why is the population growing?

5 Problems of Population Growth Not enough food to eat Houses may cover land that can be farmed Country might have few natural resources Droughts may kill crops Health services increases

6 Developing vs. Developed Country Developing Country Developed Country

7 harpercollege.edu

8 Population Growth Activity!

9 The Greenhouse Effect https://www.youtube.com/w atch?v=BPJJM_hCFj0

10 Global Warming Negative Effects Environmental Heat waves Heavy rainfall Severe droughts Health Contaminated water supplies Spread of infectious disease

11 Thinning of the Ozone Layer Oxygen layer that protects the Earth from UV rays from the sun UV rays ➔ skin cancer, cataracts, and can harm farms and forests Chlorofluorocarbons (CFCs) = leading cause of ozone thinning chemwiki.ucdavis.edu

12 Destruction of Rain Forests

13 Brainstorm in groups of 2 or 3 at least 5 ways global warming will negatively affect people’s heath if it continues.

14 Ways to protect the environment and sustain its natural resources for current & future generations Actions include reducing pollution, conserving resources & energy, and reducing consumption & waste Benefits: Save $, improve health, & help improve quality of life “Going Green”

15 Homework Go home and complete a physical activity that promotes the principle of “going green.” Write a 1/2 page (7-10 sentences) report about your experience, including what you did and your thoughts.


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