US, Canada to update Great Lakes water agreement

(AP) -- The United States and Canada say they will update a key agreement to protect the Great Lakes from invasive species, climate change and other established and emerging threats to the world's biggest surface freshwater system.

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<p><a href="http://www.physorg.com/news164164587.html">US, Canada to update Great Lakes water agreement</a></p> <p>(AP) -- The United States and Canada say they will update a key agreement to protect the Great Lakes from invasive species, climate change and other established and emerging threats to the world's biggest surface freshwater system.</p>