Floods in north Queensland have created vast sediment plumes that are dumping tonnes of eroded soil, nitrogen and farm chemicals across the Great Barrier Reef, a Queensland scientist says.
Andrew Brooks, a senior research fellow with the Australian Rivers Institute at Griffith University in Brisbane, has posted aerial photographs online that show the extent of the pollution.
One photograph shows a sediment plume that extends more than 18 kilometres out to sea from the mouth of the Burdekin river at Upstart Bay.
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