A report on the risks to Australia’s Great Barrier Reef, one of the world's natural wonders. Across the world, coral reefs are turning into marine deserts. It's almost unthinkable that the Great Barrier Reef - the world's biggest coral edifice at over 1200 miles long and home to 400 coral and 1500 fish species - could be headed the same way. But the pressure is on. No longer can the world assume that the reef will be there for future generations to enjoy in all its current beauty and complexity.

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For more information and a transcript of the film, click here.

Find out about preservation efforts at the World Wildlife Fund’s website.