Close up image of mussels with small, white barnacles on their shells.


Preview A shell placed in seawater with increased acidity slowly dissolves over 45 days.

Ocean Acidification Overview

Are you a student researching ocean acidification or someone looking to learn more about ocean acidification? This overview dives into everything to know.

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Are You An Educator?

At Smithsonian Ocean, we have lesson plans, activities, and resources to help you engage your students in the wonders of our oceans.
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Rick Cameron