enviro rant and plea

Nov 12, 2007 12:00




...move you to thinking about what you can change in your daily habits in order to do your part,
...And guilt you into DOING IT.





Excerpts:

"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.

“There’s no legal way to recycle a milk container into another milk container without adding a new virgin layer of plastic,” Moore says, pointing out that, because plastic melts at low temperatures, it retains pollutants and the tainted residue of its former contents. Turn up the heat to sear these off, and some plastics release deadly vapors. So the reclaimed stuff is mostly used to make entirely different products, things that don’t go anywhere near our mouths, such as fleece jackets and carpeting. Therefore, unlike recycling glass, metal, or paper, recycling plastic doesn’t always result in less use of virgin material. It also doesn’t help that fresh-made plastic is far cheaper.

“Except for the small amount that’s been incinerated-and it’s a very small amount-every bit of plastic ever made still exists,” Moore says, describing how the material’s molecular structure resists biodegradation. Instead, plastic crumbles into ever-tinier fragments as it’s exposed to sunlight and the elements. And none of these untold gazillions of fragments is disappearing anytime soon: Even when plastic is broken down to a single molecule, it remains too tough for biodegradation.

Truth is, no one knows how long it will take for plastic to biodegrade, or return to its carbon and hydrogen elements. We only invented the stuff 144 years ago, and science’s best guess is that its natural disappearance will take several more centuries. Meanwhile, every year, we churn out about 60 billion tons of it, much of which becomes disposable products meant only for a single use. Set aside the question of why we’re creating ketchup bottles and six-pack rings that last for half a millennium, and consider the implications of it: Plastic never really goes away."

"The word itself-nurdles-sounds cuddly and harmless, like a cartoon character or a pasta for kids, but what it refers to is most certainly not. Absorbing up to a million times the level of POP pollution in their surrounding waters, nurdles become supersaturated poison pills. They’re light enough to blow around like dust, to spill out of shipping containers, and to wash into harbors, storm drains, and creeks. In the ocean, nurdles are easily mistaken for fish eggs by creatures that would very much like to have such a snack. And once inside the body of a bigeye tuna or a king salmon, these tenacious chemicals are headed directly to your dinner table.

One study estimated that nurdles now account for 10 percent of plastic ocean debris. And once they’re scattered in the environment, they’re diabolically hard to clean up (think wayward confetti). At places as remote as Rarotonga, in the Cook Islands, 2,100 miles northeast of New Zealand and a 12-hour flight from L.A., they’re commonly found mixed with beach sand. In 2004, Moore received a $500,000 grant from the state of California to investigate the myriad ways in which nurdles go astray during the plastic manufacturing process. On a visit to a polyvinyl chloride (PVC) pipe factory, as he walked through an area where railcars unloaded ground-up nurdles, he noticed that his pant cuffs were filled with a fine plastic dust. Turning a corner, he saw windblown drifts of nurdles piled against a fence. Talking about the experience, Moore’s voice becomes strained and his words pour out in an urgent tumble: “It’s not the big trash on the beach. It’s the fact that the whole biosphere is becoming mixed with these plastic particles. What are they doing to us? We’re breathing them, the fish are eating them, they’re in our hair, they’re in our skin.”
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