For example, the Great Barrier Reef in Australia is the largest coral reef system in the world.
VOA: special.2009.04.22
Federal health minister,Nicola Roxon, says forcing the vessel to cancel a planned 10-day trip around the Great Barrier Reef is a necessary precaution.
VOA: standard.2009.05.30
Some places like Australia's Great Barrier Reef and Montana's Glacier National Park are threatened by the effects of climate change.
VOA: special.2009.04.22
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