Gov. Chris Gregoire plans an announcement Tuesday on steps the state of Washington may take in response to the increasing acidity of the ocean, which affects the shellfish industry.

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Gov. Chris Gregoire plans an announcement Tuesday on steps the state of Washington may take in response to the increasing acidity of the ocean, which affects the shellfish industry.

She’s making the announcement at 10 at the Seattle Aquarium with the administrator of the National Oceanic and Atmospheric Administration and other officials.

Gregoire appointed a panel of science and policy experts in February to suggest ways to protect shellfish and promote clean water industries. Ocean acidification is caused by increased carbon dioxide in the air and from polluted runoff.