Another threat towards the ocean is global warming and ozone depletion. ... Global warming is said to cause the effect of bleaching, which is when temperatures get too high and coral polyps lose the symbiotic algae inside them, causing them to turn white or "bleach," and eventually die. ... Global warming trends may also lead to more extreme and unpredictable weather. ... One good example was during 1982-83 El Nino event, during which unusually warm water flowed from South America's Pacific Coast, up to 70%-90% of the corals off the Pacific coasts of Costa Rica, Panama, and Columbia di...

• Word Count: 2520
• Approx Pages: 10
• Has Bibliography
• Grade Level: High School