Personal anecdote; just got back from a trip to Hawaii. Many of the beaches there had significant deposits of pebble sized and smaller visible plastic particles. Presumably there’s exponentially more smaller ones that I couldn’t as easily see. Some of the beaches had plastic floating in the water. Locals said it wasn’t island dumped garbage, it was brought in from currents from the ocean. Horrific to see.
Came here to say the same. We stayed in a beachfront house in Laie and the beach was covered in microplastics. Every morning there’d be workers raking the beach to clean it up, but the beaches would be covered in the microplastics again by the end of the day. While I was swimming I’d be surrounded by it as well. It seemed very much dependent on currents, as beaches further south on the windward shore were still prist…
Maybe there could be some way to help sift things out more quickly? Something the regular beach cleaning / beautification staff could / would do without it adding an entirely new and extenuating task to their work days. My immediate thought was some sort of netting but as you said lots of the microplastics are invisible to the naked eye unless you realllly get down there. That type of net, beyond how expensive it would be having it cover any sort of significant percentage of US / World Beaches, would be pretty much only a nightmare for the majority of sea creatures of all sorts.
The big nets seem good to keep sharks and other nefarious / dangerous sea going animals that could harm humans because the nets are large enough to allow everything BUT those big baddies through. This would be the exact opposite which means literally everything that lives or occasionally travels toward the ocean's coastal areas would be in danger.
What I really want to see is somebody compile, with video, image, audio, and in person interviews with people with first hand accounts / stakes in the ocean's health / stakes in the world's health all of the different types of things like microplastics in the water / on the earth, ice caps melting and the fallout from that, any other evidence about how fast global warming is happening, what types of damage has already happened due to that global warming and obvious water level rise? I think if the average American / Human Earthling saw a video with a large collection of different real life scenarios that are already playing out / have already played out and have a serious, dangerous, and lasting effect on the planet and/or these people's lives / livelihood.