Monday 14 August 2017

Ancient ocean deoxygenation provides an urgent warning

Ancient ocean deoxygenation provides an urgent warning

A 94-million-year-old climate change event that severely imperiled marine organisms may provide some unnerving insights into long-term trends in our modern oceans, according to a Florida State University researcher. In a study published today in the journal Science Advances, Assistant Professor of Geology Jeremy Owens traces a 50,000-year period of ocean deoxygenation preceding an ancient climate event that dramatically disturbed global ocean chemistry and led to the extinction of many marine organisms. He also draws parallels to similar rates of oxygen depletion observed in our contemporary oceans.

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