Dark Oxygen Discovered in Pacific's Clarion-Clipperton Zone

Scientists have identified 'dark oxygen' production 4,000 meters beneath the Pacific Ocean in the Clarion-Clipperton Zone (CCZ). This oxygen is produced without sunlight.

The vast area between Hawaii and Mexico contains polymetallic nodules. These mineral-rich rocks generate small electrical currents, splitting seawater into hydrogen and oxygen.

This discovery suggests aerobic life existed before photosynthetic organisms, rewriting our understanding of early life. It also hints at similar processes on other planets, aiding the search for extraterrestrial life.

Deep-sea mining plans in the CCZ raise concerns. Disrupting these 'geobatteries' could have unseen consequences for deep-sea biodiversity and Earth's chemical cycles. Scientists are urging for stronger protections for deep-sea environments.

Implications for Marine Science

This discovery emphasizes the need to protect deep-sea environments. Understanding these processes is crucial before potential disruptions occur.