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Australia’s longest dune system, the Coorong, stretches 190 kilometres from the mouth of the River Murray to South Australia’s south-east. Scientists say it is eroding and changing at an accelerating rate, sending a warning to coastal communities across the country as they prepare for the effects of rising sea-levels.

Australia’s longest dune system, the Coorong, stretches 190 kilometres from the mouth of the River Murray to South Australia’s south-east. Scientists say it is eroding and changing at an accelerating rate, sending a warning to coastal communities across the country as they prepare for the effects of rising sea-levels.