The United States and Canada are moving to ban microbeads â the tiny plastic bits in toothpaste and facewash that are big water polluters. Now scientists are focusing on a similar problem, one that’s lurking in your laundry pile.When you do laundry, take a look at the tags on your clothes. You’ll find that most shirts and pants have some synthetic material like polyester, nylon or spandex. Every time you wash them, tiny plastic fibers go down the drain. [full story]