Biologists find new environmental threat in North American lakes

A new and insidious environmental threat has been detected in North American lakes by researchers from Queen's and York universities.

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<p><a href="http://www.physorg.com/news147015868.html">Biologists find new environmental threat in North American lakes</a></p> <p>A new and insidious environmental threat has been detected in North American lakes by researchers from Queen's and York universities.</p>