World Heritage Committee gives Australia another year to address issues with Great Barrier Reef . The committee said the reef was in a state of "extreme stress" and called for urgent action on climate change. Reef suffering effects of weather events , coastal development , crown-of-thorns starfish . Boasts the greatest biodiversity of any World Heritage Site .
World Heritage Committee gives Australia another year to address issues with Great Barrier Reef . Committee has warned it may be added to danger list . Reef suffering effects of weather events , coastal development , crown-of-thorns starfish . Boasts the greatest biodiversity of any World Heritage Site .