In the middle of the Pacific Ocean is a giant pile of garbage.  Scientists have studied the phenomenon, and the creators of this book journeyed to witness science in action.  They focus on three scientists, and show some of the methods of study.  Text is broken up with plentiful photographs of things found in the ocean and the scientists at work.  Maps display how all that garbage got there.  This phenomenon in the world deserves all the publicity it can get, and the straightforward approach here is perfectly accessible to upper elementary and middle school students.  Important for most collections serving youth.