How to help oysters save the world.

http://www.bustle.com/articles/129766-how-to-help-oysters-clean-oceans-rivers-and-save-the-world-one-mollusk-at-a

Keeping natural waterways clean is important not only for preserving their ecosystems and the environment as a whole, but also for ensuring that people have healthy surroundings. These small creatures are pretty incredible, and there are a few ways you can help clean up rivers and waterways.