We’ve made a mess of the Earth’s oceans. That’s something Boyan Slat, founder and CEO of The Ocean Cleanup, has spent the better part of a decade trying to fix. It’s a massive problem — literally. The Great Pacific Garbage Patch (GPGP) — which is exactly what it sounds like — is estimated to cover an area of over 1.6 million square kilometers (620,000 square miles). It contains thousands of tons of plastic waste, and more plastic flows into the oceans around the world from rivers every day. Worse, the rate of plastic discarded into the ocean seems to only…

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