Inside the lonely fight against the biggest environmental problem you've never heard of

In 2011, an ecologist released an alarming study showing that tiny clothing fibers could be the biggest source of plastic in our oceans. The bigger problem? No one wanted to hear it

Mary Catherine O'Connor

Ecologist Mark Browne knew he’d found something big when, after months of tediously examining sediment along shorelines around the world, he noticed something no one had predicted: fibers. Everywhere. They were tiny and synthetic and he was finding them in the greatest concentration near sewage outflows. In other words, they were coming from us.

In fact, 85% of the human-made material found on the shoreline were microfibers, and matched the types of material, such as nylon and acrylic, used in clothing.