3. What is global warming?

4. How Global Warming Works Fossil fuels (coal, oil, natural gas) Carbon Dioxide (CO 2 )

5. The Sun’s energy passes through the car’s windshield. This energy (heat) is trapped inside the car and cannot pass back through the windshield, causing the inside of the car to warm up. Example of the Greenhouse Effect

8. Effects of Global Warming Increased Temperature Habitat Damage and Species Affected Changes in Water Supply Rising Sea Level

9. What’s the proof that global warming is taking place?

12. Why is global warming happening?

13. Burning of Fossil Fuels Pollution from coal, natural gas, and oil Pollution from coal, natural gas, and oil Pollution from coal, natural gas, and oil

14. When did global warming start?

15. Global Atmospheric Concentration of CO 2

16. How is global warming measured?

17. Ice Core Data CO 2 Measurements Before 1958 - Antarctica

18. CO 2 Atmospheric Measurements CO 2 Measurements Since 1958 – Mauna Loa, Hawaii

19. 1000 Years of CO 2 and Global Warming Degree Celsius Increase Parts Per Million Year Year 1000 1200 1400 1600 1800 2000 1000 1200 1400 1600 1800 2000 Temperature (Northern Hemisphere) CO 2 Concentrations

20. Global Warming: Shifting Gears

21. 2007 Goal: Reductions in CO 2 Per Year Billions of Metric Tons Carbon

22. 2007 Reductions in CO 2 Per Year Gigaton Carbon Produce electricity efficiently Use electricity efficiently Vehicle efficiency Solar and Wind Power Biofuels Carbon capture and storage Billions of Metric Tons Carbon Our Goal

23. What’s being done now to reduce our emissions? Solar Power Wind Power Fuel-Efficiency

24. We can stop global warming!

25. What can you do to help solve the problem?

29. © National Wildlife Federation, 2007