Microplastics are tiny, nearly indestructible fragments shed from everyday plastic products. As we learn more about microplastics, the news keeps getting worse. Already well-documented in our oceans and soil, we're now discovering them in the unlikeliest of places: our arteries, lungs and even placentas.
I'll believe it when it's been in the market (and disposed of) for ~80 years and we have studies on how well that worked out for us.