Friday, July 31, 2026
Science

Ancient ocean circulation reversed Atlantic and Pacific oxygen patterns 15 million years ago

The eastern tropical Pacific Ocean is known for its large low-oxygen zones that are increasing in size, putting marine life at risk. New research shows that 15 million years ago, the opposite was true.

Ancient ocean circulation reversed Atlantic and Pacific oxygen patterns 15 million years ago
Image: Phys.org
The eastern tropical Pacific Ocean is known for its large low-oxygen zones that are increasing in size, putting marine life at risk. New research shows that 15 million years ago, the opposite was true.

Originally published at Phys.org

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