1. The Greenhouse Effect Presenters: Jaime Pinto & Nathalie Mokuba
Instructor: Lyra Riabov
ESL 5 Exit Test

2. Outline Introduction Definition Greenhouse means? Greenhouse Gases.
The changes in the atmosphere’s concentration of greenhouse gases can affect the Earth's temperature
How does Greenhouse Effect occur?
Negative effects
Hypotheses about the Greenhouse Effect
Effects of Global Warning on Life
Possible solutions: How to reduce The Green House Effect?
Conclusion

3. The Green House Effect
The greenhouse effect is a term that describes how natural gases in the earth's atmosphere reduce the amount of heat escaping from the earth into the atmosphere.
The more of these gases there are, the more the Earth heats up.

4. Greenhouse means? Most greenhouses look like a small glass house.
Greenhouses are used to grow plants, especially in the winter.

5. Greenhouse Gases Water vapor Carbon dioxide (CO2) Methane (CH4)
Nitrous oxide (N2O)
Carbon monoxide
Ozone
Halocarbons
Smoke and Dust

6. Carbon Dioxide in the atmosphere
Photosynthesis balance to keep the amount of atmospheric carbon relatively stable.
Industrialization, has contributed additional carbon dioxide to the environment.

7. How does Greenhouse Effect occur?
Solar energy is absorbed by the Earth and the oceans.
Reradiates back on out into the atmosphere, into stratosphere.
The burning of fossil fuel create a veil in the atmosphere

8. Negative Effects
Droughts in most of the agricultural areas in the world.

9. Negative Effects
The melting of the polar ice caps and subsequent flooding of coastal areas.

10. Hypotheses about the Greenhouse Effect.
The Global Warming is taking place.
The Global Cooling is going to occur.
Neither Global Warming nor Cooling will occur or has been occurring.

11. Effects of Global Warning on Life
Climate Change and global Warming
Rise of sea Level
Increase of disease
Environmental Changing
Increase of natural disasters

12. How to reduce the Greenhouse Effect
BY THE GOVERNMENT:
Stabilization of the population growth.
Reduction of air pollution from industries (international agreements)
Reduction of desertification and protection of the rainforest against the clearance (national programs)
Finding alternative fuel

13. How to reduce the Greenhouse Effect
BY PEOPLE:
Reduce the use of fossil fuel
Stop the clearance of the forest
Follow the recommendations to reduce the emission of Greenhouse gases.

14. How to reduce the Greenhouse Effect
BY US
Be well inform about the consequences of Greenhouse Effect
Change your lifestyle habits to help save the environment
Plant trees.
Eliminate the use of CFCs

15. Conclusion
Cutting down forest and burning fossil fuels create more CO2 in the air.
When there are more greenhouse gases, more heat is radiated towards Earth’s surface, this produce Global warming.
Even global temperature changes of less than 1 degree can cause problems, like sea level rise and changes in rainfall.
Find solutions such as: reduce population, reduce air pollution, stop desertification.

16. References http://encarta.msn.com/greenhouseeffect
EPA Article about Greenhouse Effect.