Australians may have to leave coastal areas as rising sea levels threaten homes, according to a new report.
The parliamentary committee report says urgent action is needed, as seas are expected to rise by 80cm (31 inches).
About 80% of Australians live in coastal areas, and the report recommends new laws banning further development in coastal regions.
Correspondents say the authorities are divided over whether to retreat from rising seas or defend the coastline.
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