Coral Reef's Slow Growth Worries Scientists

The Great Barrier Reef isn't growing as fast as it should, and the consequences could be devastating for the vast species of marine life that it supports, say Australian scientists. A 13% decline in coral growth rate since 1990 is the first such drop in 400 years, says their report in Science. Global warming is one of the culprits, along with increasingly acidic seawater, notes the BBC. 
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