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study. “A certain sector of the merchant fl eet seems to be doing
               that, and it seems to be largely an Asian one.” 8
                   Shipping vessels are not the only culprits of ocean pollution.
               Fishing boats also contribute to ocean litter by dumping their used
               fi shing nets and other gear overboard. Once made of biodegrad-
               able materials such as tree fi bers and cotton, fi shing nets are now
               almost exclusively made of plastic. Every year, some 705,500
               tons (640,018 metric tons) of nets and other fi shing gear are lost
               due to rough weather or are discarded, often to cover up illegal
               fi shing activities. This “ghost gear” can linger in the water for hun-
               dreds of years, presenting a hazard to marine life. Plastic nets can
               extend for miles, and even after they are abandoned, they can
               continue to catch fi sh, a process known as ghost fi shing.


               The Great Pacific Garbage Patch
               Ghost fi shing nets make up almost half of a fl oating mass of
               ocean litter known as the Great Pacifi c Garbage Patch (GPGP).
               In 1997 oceanographer Charles Moore discovered the GPGP in
               the North Pacifi c Ocean as he sailed
               his yacht through the area after          IMPACT FACTS
               competing in an ocean race. He col-         Seventy-three percent of
               orfully describes the phenomenon            all beach trash around the
               he saw: “It was and is a thin plastic       world is plastic.
               soup, a soup lightly seasoned with
               plastic fl akes, bulked out here and        —National Geographic Society
               there with ‘dumplings’: buoys, net
               clumps, fl oats, crates, and other ‘macro debris.’ . . . This im-
               mense section of the northeastern Pacifi c Ocean, about halfway
               between Hawaii and The West Coast, was strewn throughout
               with buoyant plastic scraps.” 9
                   Moore estimated that the “soup” was approximately the size
               of Texas (although twenty years later, it had reportedly doubled
               in size). Media reports soon brought the GPGP to the attention
               of the general public, and it became a vivid example of the way
               humans are impacting the oceans.



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