13 Reasons The Ocean Might Never Be The SameFrom overfishing to the great garbage patch, these are some of the biggest threats to the future of the ocean.By by Michelle Broder Van DykeBuzzFeed News ReporterPosted on January 13, 2014, 12:46 pmTwitterFacebookLink 1. Overfishing 2. Ocean Acidification 3. Coral Bleaching 4. Oil Spills 5. Shark Finning 6. Harmful Algal Blooms 7. Ocean Dead Zones 8. Mercury Pollution 9. Marine Invasive Species 10. PCBs, or polychlorinated biphenyls 11. The Great Garbage Patch 12. Sonar 13. Nuclear Radiation