global environmental issues. 5 main environmental issues population growth poverty & hunger...
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
https://www.youtube.com/watch?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.