Over the last several years, the infamous “Great Pacific Garbage Patch” has gained popularity. Whether described as an island of trash or a soup of plastic, it has haunted the dreams of ocean conservationists. As I described in my last post, there are a lot of misconceptions about the so-called garbage patch, among them the size and amount of marine debris entrained in this area. To understand the many unknowns about the ‘garbage patch,’ you must first understand what the area really is. In a nutshell, it is a large area of marine debris concentration caused by the clockwise movement of the surface of the ocean. Sailors and fishermen have known of this area for decades—to them it is the North Pacific Subtropical High, a high pressure zone typically avoided by sailors.