2. OCEANIC POLLUTION-PLASTICS

3. “Nearly 80% of ocean trash starts on land…

4. …and is then swept into the ocean…

5. …via waterways and storm drains” (Farris and Hart, 1995 ).

6. Some comes back to the land…

7. …but most gets trapped…

8. …in the middle of the sea…

9. …where it causes…

10. . great ecological harm.

11. Winds caused by changes in atmospheric pressure.

12. Winds affect surface currents of oceans.

13. Water piles up

14. And creates a Gyre.

15. Ocean Gyres

16. Northern Pacific Garbage Patch

17. What are the benefits of plastics? Make a list w/ partner!

18. The Many Benefits of Plastics Durable & Strong Resistant to corrosion Lightweight Cheap Flexible Inert Easy to mold Easy to manufacture Easy to manipulate Promotes cleanliness

19. Made of Synthetic Polymers from Oil

22. Plastic Additives…lots of Chemicals! Fillers Reinforcements Pigments Heat Stabilizers UV Stabilizers Flame Retardants Antistatic Additives Conductive Additives Biocides Curing Agents Plasticizers

23. Plastics Can Photodegrade

24. Hydrophobic

25. Plastic Pellets

27. 1) Plastic Trash is Ugly

28. 2) Plastic Trash Entangles Marine Life

32. 3) Plastic Trash is Mistaken for Food

34. 4) Plastic Trash is a Base for Invasive Species Dispersal

35. 5) Plastic Trash Collects Toxins from the Sea and Give Off Toxins to the Sea

36. 6) Some Plastic Sinks to the Ocean Floor  Destroys Habitat

37. 7) Plastic Trash Endangers Nursery Habitats

38. 8) Plastic Trash Entangles Marine Equipment

40. Video “Synthetic Sea”