Did you know there are 5 ocean plastic "gyres?" These are currents in the oceans that trap plastic junk... forever.

Take a look. Very informative. http://5gyres.org/

This site has given me a great idea: I want kids in the area to help me build a boat from plastic off the river!
There's a demo video on the 5gyres site. Must do this summer! http://vimeo.com/29634644