Ocean Trash

Some people have no qualms about discarding a piece of dental floss, a plastic bag, or whatever non-biodegradable trash they want to get rid of. While it is an eyesore along our highways and byways, when it gets into storm sewers and carried out to sea, it assumes a life of its own. An article in the New York Times highlights how serious this problem is. Below is a section from that article and the link to the article itself.

In 2002, Nature magazine reported that during the 1990s, debris in the waters near Britain doubled; in the Southern Ocean encircling Antarctica the increase was a hundredfold. And depending on where they sample, oceanographers have found that between 60 and 95 percent of today’s marine debris is made of plastic.

Plastic gets into the ocean when people throw it from ships or leave it in the path of an incoming tide, but also when rivers carry it there, or when sewage systems and storm drains overflow. Despite the Ocean Dumping Reform Act, the U.S. still releases more than 850 billion gallons of untreated sewage and storm runoff every year, according to a 2004 E.P.A. report. Comb the Manhattan waterfront and you will find, along with the usual windrows of cups, bottles and plastic bags, what the E.P.A. calls “floatables,” those “visible buoyant or semibuoyant solids” that people flush into the waste stream like cotton swabs, condoms, tampon applicators and dental floss.

The Encyclopedia of Coastal Processes, about as somniferously clinical a scientific source on the subject as one can find, predicts that plastic pollution “will incrementally increase through the 21st century,” because “the problems created are chronic and potentially global, rather than acute and local or regional as many would contemplate.” The problems are chronic because, unlike the marine debris of centuries past, commercial plastics do not biodegrade in seawater. Instead, they persist, accumulating over time, much as certain emissions accumulate in the atmosphere. The problems are global because the sources of plastic pollution are far-flung but also because, like emissions riding the winds, pollutants at sea can travel.

For the whole article, go to:
http://www.nytimes.com/2008/06/22/magazine/22Plastics-t.html?_r=1&oref=slogin