1. Greenhouse Effect
and
Global Warming

2. What is the Greenhouse Effect?
Rise in Earth’s temperature
By certain atmospheric gases
That trap the Sun’s energy

3. Examples of Heat Trapping Gases
Water vapor (H2O)
Carbon dioxide (CO2)
Nitrous oxide (N2O)
Methane (CH4)

4. Why are the Gases Important?
Heat would escape back into space
Earth’s temperature would be 60ºF colder
Makes Earth suitable for life

5. Greenhouse Effect Examples:
Trap heat from sun
Glass lets in light
Glass keeps heat from escaping
Causes greenhouse to heat up

6. Greenhouse Effect Examples:
Car Parked in Sunlight
Glass lets in light
Glass keeps heat from escaping
Causes the car to heat up

7. Process of the Greenhouse Effect

8. Process of the Greenhouse Effect
Sun’s energy passes through atmosphere
26% is reflected or scattered
19% absorbed by clouds, gases, and particles
4% reflected to space by surface
51% reaches the surface

9. What is the Energy Used for?
Heating of the ground
Melting of ice and snow
Evaporation of water
Plant photosynthesis

10. Possible Causes of the Greenhouse Effect
Deforestation and agriculture
Burning of fossil fuels, gasoline, oil
Burning of wood and coal
CFC’s
Population Growth

11. A Better Look...

12. Why is it Dangerous?
Global Warming
Endangered Species
Climate Change

13. What is Global Warming? Heat trapped inside Earth
General warming effect created
Increase in air and ocean temperatures
Vital issue in society

14. Causes of Global Warming
Greenhouse gases increase through human activity
Deforestation
Use of fertilizers
Burning of organic matter
Burning of fossil fuels

15. Consequences of Global Warming
Climate changes
Changes in wildlife adaptations and cycles
Melting of polar ice caps
Increase in sea level
Flooding in coastal areas
Ocean Acidification

16. More Consequences Species becoming endangered/extinct Heavy drought
Spread of disease
Rise in tides
Change in weather patterns

17. Future Outlook of Glabal Warming
Natural resources depleted
Need balance between environment and industry
Greenhouse gas emissions reduced by 80%

18. What Can We Do to Help?
Reforestation
Personal Actions
Climate Policy

19. Any Question?

20. Quiz Overview Put notes away Pull out a sheet of paper
Answer the following questions
Describe the greenhouse effect
List the possible causes of greenhouse effect
List the possible causes of global warming
List the consequences of global warming

21. Picture References
All pictures were taken from Microsoft clipart except the ones shown.
The two pictures below were taken from: United States Enviromental Protection Agency. (2006, October 23). Greenhouse Effect... Retrieved September 27, 2009, from United States Enviromental Protection Agency website:
The picture below was taken from: University Corporation for Atmospheric Research. ( ). Cycles of the Earth and Atmosphere: A Website for Teachers. Retrieved September 27, 2009, from University Corporation for Atmospheric Research website:
The picture below was taken from: Nave, C. (2005). Hyperphysics: Greenhouse Effect. Retrieved September 27, 2009, from Georgia State University website:

22. Text References
D'Silva, R. (2007, April 28). Causes of the Greenhouse Effect. Retrieved September 27, 2009, from Buzzle.com website:
Nave, C. (2005). Hyperphysics: Greenhouse Effect. Retrieved September 27, 2009, from Georgia State University website:
Pidwirny, M., Dr. (2006). The Greenhouse Effect. Retrieved September 27, 2009, from Fundamentals of Physical Geography, 2nd Edition website:
United States Environmental Protection Agency. (2006, October 23). Greenhouse Effect... Retrieved September 27, 2009, from United States Environmental Protection Agency website:
University Corporation for Atmospheric Research. ( ). Cycles of the Earth and Atmosphere: A Website for Teachers. Retrieved September 27, 2009, from University Corporation for Atmospheric Research website: