Dan Ohnemus unloads pumps that have sucked in seawater samples containing particles floating in the ocean. He analyzes those particles to reveal the movement of chemicals in the ocean.

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Dan Ohnemus unloads pumps that have sucked in seawater samples containing particles floating in the ocean. He analyzes those particles to reveal the movement of chemicals in the ocean.

© Chris Linder

Dan Ohnemus unloads pumps that have sucked in seawater samples containing particles floating in the ocean. He analyzes those particles to reveal the movement of chemicals in the ocean. photo copyright Chris Linder taken at and featuring the class

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