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O'Leary and Jacobsen co-authors on Nature paper on global Ocean Health Index

Using a new comprehensive index designed to assess the benefits to people of healthy oceans, scientists have evaluated the ecological, social, economic, and political conditions for every coastal country in the world. Their findings, published today in the journal Nature, show that the global ocean scores 60 out of 100 overall on the Ocean Health Index. Individual country scores range widely, from 36 to 86. The highest-scoring locations included densely populated, highly developed nations such as Germany, as well as uninhabited islands, such as Jarvis Island in the Pacific.

Determining whether a score of 60 is better or worse than one would expect is less about analysis and more about perspective. "Is the score far from perfect with ample room for improvement, or more than half way to perfect with plenty of reason to applaud success? I think it's both," said lead author Ben Halpern, an ecologist at UC Santa Barbara. "What the Index does is help us separate our gut feelings about good and bad from the measurement of what's happening."

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