About nine million tons of visible plastic trash enter oceans each year—then there’s the waste we can’t see. This story appears in the May 2019 issue of National Geographic magazine.

along with heartbreaking images of its impact on everything from turtles to birds to whales, has generated a public outcry. But sunlight, wind, and waves eventually break down ocean plastic to ...

Using laser techniques to measure the speed and scattering of light gave a highly accurate picture of the chemical and physical ... It encourages people to incorporate ways to reduce micro plastic ...