Marine Debris Resources Marine Debris office of Response and Restoration has great resources on learning about debris! Here is a list of some frequently asked questions (and links to answers): What are microplastics? How much plastics are in the ocean and Great Lakes? What are the different kinds of plastics? Can plastic marine debris harm animals? Do plastics go away when they’re in the ocean or Great Lakes? Why is plastic marine debris so common? What is plastic marine debris? Visit their website for more educational resources!