Agreed. This is hardly a new problem.

Plastics cause much harm to our ecosystems but I'm not sure microplastics are so bad. Plastic is a really broad term, makes it hard to talk about and I'm ignorant on much of the subject. But I understand that most microplastics are biologically inert?

Seems like everyone on lemmy jumps to the conclusion that microplastics are or will have drastic health effects. No, they're not comparable to lead or asbestos, or, as you said, we'd know, would already have a mountain of evidence.