Light bulbs, bottle caps, toothbrushes, Popsicle sticks and tiny pieces of plastic, each the size of a grain of rice, inhabit the Pacific garbage patch, an area of widely dispersed trash that doubles in size every decade and is now believed to be roughly twice the size of Texas. But one research organization estimates that the garbage now actually pervades the Pacific, though most of it is caught in what oceanographers call a gyre like this one — an area of heavy currents and slack winds that keep the trash swirling in a giant whirlpool. Scientists say the garbage patch is just one of five that may be caught in giant gyres scattered around the world’s oceans.

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http://www.nytimes.com/2009/11/10/science/10patch.html?_r=1&emc=eta1