A 25-year-old’s mission to clean up the Great Pacific Garbage Patch has yielded a new discovery — and it means the plastic problem is even worse than we thought

Millions of tons of plastic accumulate in the oceans each year, but only a small fraction of that winds up on the surface. For years, scientists believed that the “missing” plastic quickly degraded into tiny fragments after entering the ocean, then fell to the bottom of the sea. A new study from The Ocean Cleanup, a nonprofit founded by 25-year-old Boyan Slat, challenges that theory. The study found that plastics undergo a long journey

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