I'm actually quite amazed by the lack of attention that rivers, streams, and lakes get when it comes to cleaning up and taking care.
Plastic or whatever other kind of pollution in the ocean is a huge thing, everyone cares and everyone says we need to do something about it. We see a photo of a turtle or other ocean creature with a bit of plastic wrapped around it and it's a big thing.
But…
Taking care of the inland bodies of water, and making sure that they are trash and pollution free stops a lot of that crap ending up in the ocean in the first place, and there are plenty of fish and and other species living in the rivers that are also affected by all of the same issues that those ocean turtles are.