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'Wonky holes' blamed for coral death

By Rachel Nowak

16 November 2002

CORAL REEFS around the world are under threat from tourism, pollution, rising sea temperatures, dynamiting and overfishing. Now you can add “wonky holes” to the list.

Wonky hole is the Australian term for springs on the seabed that pump out water draining from the land. And it seems that these springs are poisoning once-pristine inshore reefs with acidic water from land cleared for crops such as sugar cane, fuelling fears that farming practices are damaging corals close to shore.

Photographs show that reefs in the Great Barrier Reef Marine Park that are close to developed areas have lost much of…

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