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In the scientific world the wall is known as the "Curtain Of Death".
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Repairing the damage in the national underwater park could cost $2 million.
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U.S. champion surfer Kelly Slater has called on the French government to cull the population of sharks crowding the seas off Reunion island in the wake of the death of a boogie-boarder. Alexandre Naus...
There’s literally no escaping mankind’s mess.
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'Just when she passes me below I realise it's a Great White shark.'
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The sculptures act as artificial reefs for fish and coral.
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A young inventor has a cleanup plan -- but he has to understand the enormity first.
Omar VidalCarlos Navarro
And it might be as salty as the Dead Sea.
Fewer than 60 vaquita are left, but with swift action there's hope for their recovery.
Climate change has all but swallowed Shishmaref.
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It's more than 300 feet deeper than any other known blue hole.
Friends don't let friends get hooked on microbeads.