We've now found microplastics on the very highest and lowest points on Earth.
Mount Everest is littered with them.
Humans have managed to pollute the highest point on the planet.
Tiny pieces of plastic sit in the snow just below the summit of Mount Everest, at 27,690 feet (8,400 meters) above sea level. These microplastics fragments smaller than a fingernail that never fully breakdown have also been found in human poop, Arctic ice, and the Mariana Trench 36,000 feet deep in the Pacific Ocean.
Imogen Napper, a marine scientist, researches microplastics at the University of Plymouth work that has earned her the nickname "the plastic detective."
But she never expected her boss to ask whether she'd be interested in analyzing snow samples from Mount Everest to search for plastic.
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