1. AAAHHHHH!!!!

2. Climate Change Climate Physical properties of the troposphere of an area based on analysis of its weather records over a long period Two main deciding factors are Temperature and Precipitation

5. Natural Greenhouse Effect Absorption of Infrared radiation from the surface of the earth by greenhouse gases. Absorbed heat is emitted in all directions, including toward the earth’s surface. Natural greenhouse gasses with largest the concentrations: - Water vapor - Carbon dioxide

6. Carbon Cycle Atmospheric CO 2 Photosynthesis Plants Death and decomposition An i mals Cellular Respiration Combustion Fossil Fuels

7. Energy input and output Energy comes into the system as solar radiation Absorbed by the atmosphere Absorbed by the earth Input

8. Energy Output IR radiation by earth Sensible heat flux – convection or conduction Latent heat flux – phase changes in water Reflected by the atmosphere

9. Incoming solar radiation Outgoing radiation Short waveLong wave (IR) Absorbed by water vapor, dust, O 3 (17) Absorbed by clouds (3) Absorbed Back scattered Reflected by clouds Reflected by surface Earth’s surface Emission by clouds Latent heat flux Sensible heat flux Space Atmosphere Net emission by water vapor, CO 2, O 2 Absorption by clouds, water vapor, CO 2, O 2 7 16 89 40 20 100 49

10. Enhanced Greenhouse Effect = Global Warming

11. So where is the heat coming from?

13. Changes could be the result of : 1. Natural climate fluctuations 2. Human activities * 3. Combination of factors

14. Regardless of cause - affects could include: -Availability of water resources by altering evaporation and precipitation -Alter the structure and location of biomes -Extinction of species -Change sea levels -Shift crop growing regions

15. So, what can we do about it? calculator Figure out how much of a problem we are. Take action. Polar Explorers Will Steger Eric Larson Global Warming 101

16. Individual actions Alternative Energy –Solar power –Wind power –Hydrogen Others

22. Now We Are Changing To A COMPLETELY DIFFERENT Subject….

24. What’s the issue with ozone? How are humans involved? What are the results of the issue? What can be done?

25. Ozone Depletion