Home » Professor Dan Daffoley – IUCN Deoxygenation of Oceans

Professor Dan Daffoley – IUCN Deoxygenation of Oceans

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Nick Breeze

Climate journalist and host of Shaping The Future podcast.

The oceans cover 70% of the Earth’s surface and are a major source of oxygen and carbon sink. This new study confirms that they are also in rapid decline as deoxygenation also means a dead ocean and if the oceans go, it is widely accepted that we go too.

“We are now seeing increasingly low levels of dissolved oxygen across large areas of the open ocean. This is perhaps the ultimate wake-up call from the uncontrolled experiment humanity is unleashing on the world’s ocean as carbon emissions continue to increase,” said Dan Laffoley, Senior Advisor Marine Science and Conservation in IUCN’s Global Marine and Polar Programme and a co-editor of the report. “Ocean oxygen depletion is menacing marine ecosystems already under stress from ocean warming and acidification. To stop the worrying expansion of oxygen-poor areas, we need to decisively curb greenhouse gas emissions as well as nutrient pollution from agriculture and other sources.”

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