In a new perspective on ocean health, one that looks through the lens of both humans and the natural world, scientists give Earth's seas a grade of 60 out of 100, meaning there's lots of room for improvement, they say.
The new index ranks oceans' health and the benefits they provide to humans using 10 categories, such as biodiversity, clean waters, ability to provide food for humans and support of the livelihood ofpeople living in coastal regions.
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