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7 major threats to our planet's oceans

By: Catie Leary on Oct. 16, 2009, 11:22 p.m.
Great Pacific Garbage Patch

Photo: kqedquest/Flickr

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Great Pacific Garbage Patch

Imagine an island of trash twice the size of Texas floating around in the Pacific Ocean between Hawaii and California. No joke. It's called the Great Pacific Garbage Patch, and it consists of 3.5 million tons of plastic and other debris suspended in the currents of the North Pacific Gyre.