Saturday, May 19, 2007

Plastic Ocean

A few excerpts from an article in Best Life Magazine: Plastic Ocean: Our Oceans Are Turning Into Plastic - Are We? by Susan Casey

A vast swath of the Pacific, twice the size of Texas, is full of a plastic stew that is entering the food chain. Scientists say these toxins are causing obesity, infertility...and worse...

This news is depressing enough to make a person reach for the bottle. Glass, at least, is easily recyclable. You can take one tequila bottle, melt it down, and make another tequila bottle. With plastic, recycling is more complicated. Unfortunately, that promising-looking triangle of arrows that appears on products doesn’t always signify endless reuse; it merely identifies which type of plastic the item is made from. And of the seven different plastics in common use, only two of them—PET (labeled with #1 inside the triangle and used in soda bottles) and HDPE (labeled with #2 inside the triangle and used in milk jugs)—have much of an aftermarket. So no matter how virtuously you toss your chip bags and shampoo bottles into your blue bin, few of them will escape the landfill—only 3 to 5 percent of plastics are recycled in any way.

Though marine dumping is part of the problem, escaped nurdles and other plastic litter migrate to the gyre largely from land. That polystyrene cup you saw floating in the creek, if it doesn’t get picked up and specifically taken to a landfill, will eventually be washed out to sea. Once there, it will have plenty of places to go: The North Pacific gyre is only one of five such high-pressure zones in the oceans. There are similar areas in the South Pacific, the North and South Atlantic, and the Indian Ocean. Each of these gyres has its own version of the Garbage Patch, as plastic gathers in the currents. Together, these areas cover 40 percent of the sea. “That corresponds to a quarter of the earth’s surface,” Moore says. “So 25 percent of our planet is a toilet that never flushes.”

... Each of us tosses about 185 pounds of plastic per year. We could certainly reduce that. And yet—do our products have to be quite so lethal? Must a discarded flip-flop remain with us until the end of time? Aren’t disposable razors and foam packing peanuts a poor consolation prize for the destruction of the world’s oceans, not to mention our own bodies and the health of future generations? “If ‘more is better’ and that’s the only mantra we have, we’re doomed,” Moore says, summing it up.

Oceanographer Curtis Ebbesmeyer, Ph.D., an expert on marine debris, agrees. “If you could fast-forward 10,000 years and do an archaeological dig…you’d find a little line of plastic,” he told The Seattle Times last April. “What happened to those people? Well, they ate their own plastic and disrupted their genetic structure and weren’t able to reproduce. They didn’t last very long because they killed themselves."

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