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World Ocean Health: a Failing Grade

World Ocean Health: a Failing Grade

Even if you’ve never seen the ocean, never squiggled your toes into warm beach sand, the ocean has still played a major role in your life. Oceans provide food, jobs and are an absolutely essential part of the hydrological cycle that gives us fresh water to drink. Unfortunately, we’ve taken our oceans for granted, and now scientists say it may soon start flunking out of the ecosystem.

A new ocean health index published recently in the journal Nature gives the world ocean an overall score of 60 on a scale of 0 to 100. That’s a single point away from a big fat ‘F’ in every class I’ve ever attended. When taken individually, only 5 percent of the world’s nations scored higher than 70, whereas 32 percent scored lower than 50.

world oceans, ocean health, sustainable fishingImage via Halpern et al./Nature 2012

Dozens of scientists collaborated to create an index comprising ten diverse public goals for a healthy coupled human–ocean system and calculated the index for every coastal country. The ten measures — which assess features such as food provision, carbon storage, tourism value and biodiversity — were chosen to reflect both the needs of humans and ecosystem sustainability. Among the world’s 133 countries with ocean coastlines, scores ranged from 36 to 86; the United States scored slightly above average at 63.

“Previous ecosystem assessments focused on ways humans have damaged nature, such as by polluting waterways or driving species to the brink of extinction,” reports the L.A. Times. “For this index, researchers decided to award points for the ways that oceans could sustainably benefit people, even though such benefits might come at the expense of another goal.”

Experts say this index is similar to vital signs that a doctor might evaluate if you were rushed to the emergency room. Breathing, heart beat and pulse allow doctors to establish a baseline of your condition, and determine further action for stabilizing your condition. Evaluating the ocean’s “vital signs” allow countries to determine the best course of action for conservation efforts and the impact of ocean-based industries.

The index score for the United States suggests, according to the Nature study, that the country could improve its ocean health by supporting tourism businesses that are environmentally friendly; encouraging sustainable fishing practices; and investing in aquaculture to provide jobs and economic benefits to coastal communities.

The researchers said they plan to recalculate the global score annually.

Related Reading:

A Historic Milestone For America’s Ocean Fish

After Rio+20, What Now For The Ocean?

A Partnership To Rescue Our Oceans

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Image via Thinkstock

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7:29PM PDT on Oct 15, 2012

sad. it isn't just trash but waste dumping and chemicals and so much else.

9:32AM PDT on Sep 17, 2012

Looks like we can ruin anything.

3:20AM PDT on Sep 17, 2012


3:20AM PDT on Sep 17, 2012


1:46AM PDT on Sep 17, 2012

thanks for sharing

5:30PM PDT on Sep 16, 2012

Thanks for the article, noted.

11:09AM PDT on Sep 16, 2012


9:55AM PDT on Sep 16, 2012

Thanks for sharing

9:18AM PDT on Sep 16, 2012

Why must humans poison every thing they touch? If we're not poisoning our water and air, we're driving our fellow-inhabitants to the brink of extinction and beyond!
You'd think we'd learn--we cannot live without clean air and water--and removing parts of the food chain means that "our turn" is getting closer.

5:21PM PDT on Sep 15, 2012


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