1. OCEANIC POLLUTION-PLASTICS

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

3. …and is then swept into the ocean…

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

5. Some comes back to the land…

6. …but most gets trapped…

7. …in the middle of the sea…

8. …where it causes…

9. great ecological harm.

10. Winds caused by changes in atmospheric pressure.

11. Winds affect surface currents of oceans.

12. Water piles up

13. And creates a Gyre.

14. Ocean Gyres

15. Northern Pacific Garbage Patch

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

17. 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

18. Made of Synthetic Polymers from Oil

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

22. Plastics Can Photodegrade

23. Hydrophobic

24. Plastic Pellets

26. 1) Plastic Trash is Ugly

27. 2) Plastic Trash Entangles Marine Life

31. 3) Plastic Trash is Mistaken for Food

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

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

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

36. 7) Plastic Trash Endangers Nursery Habitats

37. 8) Plastic Trash Entangles Marine Equipment

39. Video “Synthetic Sea”