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{{short description|Gyre of marine debris}}
''Not to be confused with [[Great Britain|Great Britain]].''
A '''garbage patch''' is a [[Ocean gyre|gyre]] of [[marine debris]] particles caused by the effects of [[ocean current]]s and increasing [[plastic pollution]] by human populations. These human-caused collections of plastic and other debris, cause ecosystem and environmental problems that affect marine life, contaminate oceans with toxic chemicals, and contribute to [[greenhouse gas emissions]]. Once waterborne, marine debris becomes mobile. Flotsam can be blown by the wind, or follow the flow of ocean currents, often ending up in the middle of [[oceanic gyre]]s where currents are weakest. Garbage patches grow because of widespread loss of plastic from human trash collection systems.
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