posted on August 31, 2010 16:42
Coral reefs are sensitive to climate change and track sea level. New observations show that an extensive coral reef existed in the southern Pacific Ocean thousands of years ago. Researchers used multi-beam sonar, coring, and dating to examine a relict reef discovered in water about 20-25 meters (65-82 feet) deep around Lord Howe Island in the southern Pacific Ocean.
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