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Study | World's coral reefs half of what they were in the 1950s

Scientific literature is rife with accounts of desolate reefs bereft of corals, drained of color and sea life. A meta-analysis published Sept. 17 shows that these are not isolated incidents — coral cover today is half of what it was 70 years ago.

“Over the last several decades, I have watched these ancient complex coral reef ecosystems around the world literally collapse,” said John Bruno, a co-author of the study published in One Earth. “Our new study shows that we have paid a heavy price for that.”

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