1. Climate Change and its Impact on Life

3. Making a distinction… Weather is….Climate is….

4. What evidence do we have for the climate record?

5. Climate Proxy Indirect sources of climate information from natural archives Tree Rings Ice cores Cave Deposits Lake and Ocean Sediments Tree Pollen Historical Records

6. The Ice Core Analogy In your group 4 bags of Malvaviscos (Marshmallows) of 4 different colors Each color is a season for snowfall – White – Winter, Green – Spring, Yellow – Summer, Pink – Fall One person for each season, one person to be a volcano, one person to be a timer and pusher

7. Antarctica from space

8. Antarctica

9. Antarctica is covered by ice

10. How snow is squeezed into ice

11. How an ice sheet is made

12. Antarctic ice

13. How thick is this ice sheet?

14. Layered ice

15. The ice core drill rig

16. The ice core

17. Handling ice cores

18. Studying ice cores

19. Layers in ice cores

20. Ice core sites in Antarctica Vostok

21. ?

23. http://aim.hamptonu.edu/library/gallery/gal-sci.html

24. What might cause this NaturalHuman Induced

25. What might cause this NaturalHuman Induced

26. Source: IPCC, 2001

27. Possible futures - temperature Source: IPCC, 2001

28. CO 2 Concentration (ppmv) Projected levels of atmospheric CO 2 during the next 100 years would be higher than at anytime in the last 440,000 yrs Source: IPCC, 2001