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Scientists just solved the mystery of the missing ocean plastic—now we’re all in trouble

Millions of tons of plastic in the ocean aren't floating in plain sight—they're invisible. Scientists have now confirmed that the most abundant form of plastic in the Atlantic is in the form of nanoplastics, smaller than a micrometer. These particles are everywhere: in rain, rivers, and even the air. They may already be infiltrating entire ecosystems, including the human brain, and researchers say prevention—not cleanup—is our only hope.

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