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 transcript:

Global Environmental Issues

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

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

Why is the population growing?

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

Developing vs. Developed Country Developing Country Developed Country

harpercollege.edu

Population Growth Activity!

The Greenhouse Effect atch?v=BPJJM_hCFj0

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

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

Destruction of Rain Forests

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

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”

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.