Monday, June 8, 2009

Plastic fantastic

(Source: Sydney Morning herald)

In the midst of the northern Pacific Ocean is a liquid desert, a vast floating garbage dump, devoid of complex ocean life, prone to doldrums, seldom visited by fishing vessels, away from main shipping lines, and thus rarely seen by visitors.

It offers, by all accounts, a disturbing vision. Anyone sailing through this liquid dump will encounter, from horizon to horizon, concentrations of bobbing rubbish, in every direction, for day after day. Most of what is floating is not even visible, because it is plastic which has broken down into microparticles.

This degenerating soup is much larger than NSW and Victoria combined. It is about the same size as Britain, Ireland, France, Spain and Portugal. It has been created by a giant spiral of clockwise ocean currents, known as the North Pacific Gyre, which carries human-created garbage that is slowly collected and consolidated by wind and currents.

The phenomenon has a name: the Eastern Garbage Patch. It was first properly documented, quite recently, by a Californian sailor and ocean researcher, Charles Moore, after he took a shortcut by motoring his yacht through the doldrums on his way back from the 1997 Trans-Pacific Yacht Race. A second giant floating mass, created by the same gyre, has been discovered thousands of kilometres away between Hawaii and Japan. Together they are commonly referred to as the Great Pacific Garbage Patch.

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