http://ocean.nationalgeographic.com/ocean/critical-issues-marine-pollution/
https://www.youtube.com/watch?v=5gOfLCeyuZA
http://www.conserve-energy-future.com/various-ocean-pollution-facts.php
https://www.dosomething.org/facts/11-facts-about-pollution
https://www.youtube.com/watch?v=l3XGUnjDRUQ
https://www.youtube.com/watch?v=dfcRW7sIrPI
https://www.youtube.com/watch?v=Ku5dgUtXcLo
http://www.nrdc.org/oceans/plastic-ocean/
http://www.learner.org/interactives/garbage/sewage.html
http://wwf.panda.org/about_our_earth/blue_planet/problems/pollution/
http://www.bluevoice.org/news_issueseffects.php
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