Newest Climate Threat: The Ocean is Losing Oxygen

Image by NASA
Image by NASA

Shall we call this the “climate threat of the day?” With new evidence arriving daily of alarming trends and discoveries of previously unconfirmed effects from a changing climate, and a more broadly changing planet, it can be hard to keep up. Someone needs to publish a daily calendar with a fill-in-the-blank statement: “The thing that scares me the most today about planetary change is ____________________.”

For example:

The thing that scares me the most today about planetary change is ocean deoxygenation.

What is that? In essence, science has proven, just this week, that the global ocean has less oxygen today than in recent decades. The loss is greater than 2%, according to a new article in Nature by lead author Sunke Schmidtko. The trend has been predicted and demonstrated on local scales, but this composite study is the first to quantify it on a global scale.

The ocean is slowly suffocating, due to changes caused by us. If that much harm could happen within 50 years, I shudder to think what could happen within 500 years.

Wikipedia will need to update its definition of ocean deoxygenation, because it’s now an established observation, instead of a suggestion. [We also have a more immediate need of a sad Planet Ocean emoji. Here’s my sideways text-only version  (:<)  ]

Read more about this study in a Washington Post article by Chris Mooney that states: “The new study underscores once again that some of the most profound consequences of climate change are occurring in the oceans, rather than on land.”

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