Is the Pacific Ocean's chemistry killing sea life?

The collapse began rather unspectacularly. In 2005, when most of the millions of Pacific oysters in this tree-lined estuary failed to reproduce, Washington's shellfish growers largely shrugged it off.

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<p><a href="http://www.physorg.com/news164811245.html">Is the Pacific Ocean's chemistry killing sea life?</a></p> <p>The collapse began rather unspectacularly. In 2005, when most of the millions of Pacific oysters in this tree-lined estuary failed to reproduce, Washington's shellfish growers largely shrugged it off.</p>