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| March 2009 |
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Your plastic footprint
In a memorable scene from the 1968 movie, “The Graduate,” recent Harvard graduate Benjamin Braddock is given a single word of advice from one of his father’s friends: “Plastics.” It probably would have been good business advice in 1968, but it hasn’t worked out so well for planet Earth. Plastic is everywhere. Plastic containers hold food, beverages, shampoo and household cleaning products. Plastic bags protect your newspaper from the elements and plastic bags cover your dry cleaning. That toy is not a rubber duckie, but a plastic duckie. All this plastic does not biodegrade. It photodegrades when exposed to ultraviolet light and slowly breaks up into smaller and smaller pieces that persist in the environment. Even before the plastic hits the landfill, stress from heat and light will cause plastic objects such as soda bottles, for example, to release trace amounts of the chemicals they are made of. One of the most hideous examples of the permanence of plastic is a swirling heap of debris — about twice the size of Texas — in the Pacific Ocean. The debris is 80 percent plastic and weighs about 3.5 million tons. Just as we have carbon footprints and nitrogen footprints, we also have plastic footprints. (Rise Above Plastics promises that a “plastic calculator” that helps measure your plastic footprint will soon be available at www.riseaboveplastics.org). To combat the increasing flood of plastic, cities like San Francisco, Los Angeles and Westport, Conn., have banned the use of plastic bags in stores. In the U.S. at least 100 billion plastic bags are used every year, and only about 5 percent are recycled. Banning the bags is a way to decrease their use, but Ireland has levied a tax on plastic bags, successfully reducing their use by 90%. Doing without plastic products is probably impossible, but reducing our reliance on them can be done.
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