Where does it come from? Where Does it Go?
Marine debris comes from many different places. It could come from a person that threw away trash on the beach or into a storm drain. It could come from a ship that broke apart or lost its fishing nets or some cargo. It's called flotsam if it was lost overboard, and jetsam if it was thrown overboard.
Once it is in the ocean, it goes where the currents take it. It can go all over the world!
Once, some people found a little rubber duck on a Maine, USA beach. They found out that the duck had been part of some cargo lost off a ship in the North Pacific Ocean eleven years earlier! (Harpers Magazine, January 2007)