I like how we've gone from looking at the huge garbage patches in our oceans to the amount of microplastic in a drop of water. I don't see it as a material issue, you pick a material and with enough quantity it will pollute. It is a consumer society issue. But maybe it will be easier to change consumer society by dangling the microplastic threat effect so the actual cause can be treated - wait, the psychopaths in CEO positions would lose money then, never mind.