Columbia University Styrofoam often ends up in the ocean and harms ecosystems. Our Oceans: A Plastic Soup more than 500 years inundating the world's oceans and water supplies plastic debris floating around in the oceans gyres plastic in the ocean estimates one study. microplastic soup (env ref 1) Our Oceans: A Plastic Soup indestructible 450 years Columbia University Studies have proven an estimated 20 to 600 years Our Oceans: A plastic Soup estimates plastic soup.” rivers, lakes and oceans plastic soup https://blogs.ei.columbia.edu/2011/01/26/our-ocean... plastic soup A study in 2010 persistent organic pollutants Columbia University Columbia University Columbia University a toxic plastic soup. Columbia University plastic in the ocean plastic in the ocean sopa de plástico Columbia University one study. Our Oceans: A Plastic Soup thousands of years to degrade in water plastic in the ocean plastic in the ocean Our Oceans: A Plastic Soup Plastic bags take 20 years plastic in the ocean