Thursday, April 2, 2009

Convergence of Plastic Bigger than Texas

This is text from places cited - how many of the plastic bags I throw away end up here? How can there be any more debate about paper or plastic or recyclable?

Great Pacific Garbage Patch

In the broad expanse of the northern Pacific Ocean, there exists the North Pacific Subtropical Gyre, a slowly moving, clockwise spiral of currents created by a high-pressure system of air currents. The area is an oceanic desert, filled with tiny phytoplankton but few big fish or mammals. The area is filled with something besides plankton: trash, millions of pounds of it, most of it plastic. It's the largest landfill in the world, and it floats in the middle of the ocean.

The gyre has actually given birth to two large masses of ever-accumulating trash, known as the Western and Eastern Pacific Garbage Patches, sometimes collectively called the Great Pacific Garbage Patch. The Eastern Garbage Patch floats between Hawaii and California; scientists estimate its size as two times bigger than Texas. The Western Garbage Patch forms east of Japan and west of Hawaii. Each swirling mass of refuse is massive and collects trash from all over the world. The patches are connected by a thin 6,000-mile long current called the Subtropical Convergence Zone. Research flights showed that significant amounts of trash also accumulate in the Convergence Zone.
from howstuffworks

Garbage Patch
The floating plastic particles resemble zooplankton, which can be mistakenly consumed by jellyfish. Many of these long-lasting plastics end up in the stomachs of marine birds and animals, including sea turtles, and the Black-footed Albatross. Besides the particle's danger to wildlife, the floating debris can absorb organic pollutants from seawater, including PCBs, DDT and PAHs. Aside from toxic effects, when ingested, some of these are mistaken by the endocrine system as estradiol, causing hormone disruption in the affected animal.
from wikipedia

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