Why are microplastics being found in California's Sierra Snowpack? Did someone put them there like China by accident or on purpose?

 

The consecutive storms that have battered the Sierra Nevada have added up to huge gains in California's snowpack and it appears researchers are finding more than just snow, they're finding traces of microplastics. "So far, we have found some microplastics in some of our snow samples.3 hours ago

Microplastics Found in California's Sierra Snowpack

NBC Bay Area

https://www.nbcbayarea.com › local › climate-in-crisis

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