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Created page with "==Introduction== Marine debris, also known as marine litter, is human-created waste that has deliberately or accidentally been released in a sea or ocean. Floating oceanic debris tends to accumulate at the center of gyres and on coastlines, frequently washing aground, when it is known as beach litter or tidewrack. ==Origins== Marine debris is a global transboundary pollution problem. The waste that makes up marine debris comes from many sources and enter..."