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Invading seawater threatens to pollute or destroy scores of Australia's coastal water supplies, water scientists have warned. In a recent report researchers have concluded that more than two thirds of the aquifers they examined were at moderate to high risk of seawater intrusion. Around Australia's 35,000-km coastline where 18 million people live, hundreds of towns and communities, and thousands of households and farms depend on freshwater drawn from aquifers. [Source: Physorg.com]
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