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The most obvious impact humans are having on the world's oceans is pollution. Though it can take myriad forms, pollution is now most shockingly evident in the seas in the form of giant, swirling gyres of plastic. Scientists and experts are alarmed at the amount of plastic debris in addition to the growing 'dead zones' in the world's oceans. While dead zones can be formed by natural causes, climate change, along with human activities and industrial waste, have greatly aggravated the situation.
[Source: Aljazeera]
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