Using marine animals to study environmental changes - San Diego, California News Station - KFMB Channel 8 - cbs8.com

Using marine animals to study environmental changes

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SAN DIEGO (CBS 8) - Researchers at the Scripps Institution of Oceanography have spent years studying marine fossils to find out more about the ocean's health.

In this Earth 8 video story, Shawn Styles has more.

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