1. Ecological Problems

6. Biological Magnification Increase or concentration of a substance, such as the pesticide DDT, in a food chain.

9. OZONE DEPLETION CFC’s are commonly used as: Refrigerants Styrofoams Solvents Aerosols

13. OZONE DEPLETION Ozone protects the earth from harmful UVB rays. It has been thinning over Antarctica.

14. OZONE O 3 UV rays split Oxygen that add to O 2 to make O 3

15. OZONE DEPLETION Ozone = 0 3 CFC = CCl 4 Cl breaks off an oxygen from ozone

17. Why McDonalds changed to paper containers.

18. Should the School Use Styrofoam Lunch Trays?

20. Ozone Depletion Kills Krill (baleen whale food source) Krill is a zooplankton

21. Krill are dramatically affected by UVB rays. Reports show an 80% drop in the Population of zooplanction off the coast of southern California.

26. Glacier Melting State of the Arctic on Vimeo

27. GLOBAL WARMING: SEA LEVELS RISE Reuters AlertNet - VIDEO: Rising seas threaten the MaldivesReuters AlertNet - VIDEO: Rising seas threaten the Maldives

28. DEFORESTATION Loss of Forests REPLANT

29. “Slash and Burn”

33. Erosion is More Likely with Deforestation

34. ACID RAIN

39. pH of Acid Rain The pH of "normal" rain has traditionally been given a value of 5.6. However scientists now believe that the pH of rain may vary from 5.6 to a low of 4.5 with the average value of 5.0.

42. EXTINCTION End of a species

44. INVASIVE SPECIES Non-native (or alien) to the ecosystem Kudzu from Japan to stop erosion Garden purple loosestrife is taking over wetlands