Ocean oxygen levels drop 2pc in 50 years: Study
Scientists have long warned about potentially deadly consequences of ocean's declining oxygen levels on marine life.
Climate change is extending far beyond the threat of melting polar ice caps-it's putting a dangerous stranglehold on life in oceans, too.
A new study published in the science journal Nature Wednesday found that the ocean's worldwide oxygen content declined by more than 2% between 1960 and 2010.
Scientists have long warned about the potentially deadly consequences of the ocean's declining oxygen levels on marine life, and its resulting impact on humans.
The study came from the GEOMAR Helmholtz Centre for Ocean Research in Kiel, Germany, where the three co-authors -- Sunke Schmidtko, Lothar Stramma and Martin Visbeck -- pulled data dating back to 1960.
"We were able to document the oxygen distribution and its changes for the entire ocean for the first time. These numbers are an essential prerequisite for improving forecasts for the ocean of the future," wrote Schmidtko.