The plastic bag: the big polluter

I read this old article and was shocked to find out how damaging plastic bags can be to the environment, because of their composition and their ubiquitousness. I mean, I knew they weren't good for the environment, but they are far more harmful than I thought:

The plastic bag is an icon of convenience culture, by some estimates the single most ubiquitous consumer item on Earth, numbering in the trillions. They're made from petroleum or natural gas with all the attendant environmental impacts of harvesting fossil fuels. One recent study found that the inks and colorants used on some bags contain lead, a toxin. Every year, Americans throw away some 100 billion plastic bags after they've been used to transport a prescription home from the drugstore or a quart of milk from the grocery store. It's equivalent to dumping nearly 12 million barrels of oil.

Only 1 percent of plastic bags are recycled worldwide -- about 2 percent in the U.S. -- and the rest, when discarded, can persist for centuries. They can spend eternity in landfills, but that's not always the case. "They're so aerodynamic that even when they're properly disposed of in a trash can they can still blow away and become litter," says Mark Murray, executive director of Californians Against Waste.
[...]
Floating bags can look all too much like tasty jellyfish to hungry marine critters. According to the Blue Ocean Society for Marine Conservation, more than a million birds and 100,000 marine mammals and sea turtles die every year from eating or getting entangled in plastic.The conservation group estimates that 50 percent of all marine litter is some form of plastic. There are 46,000 pieces of plastic litter floating in every square mile of ocean, according to the United Nations Environment Programme. In the Northern Pacific Gyre, a great vortex of ocean currents, there's now a swirling mass of plastic trash about 1,000 miles off the coast of California, which spans an area that's twice the size of Texas, including fragments of plastic bags. There's six times as much plastic as biomass, including plankton and jellyfish, in the gyre. "It's an endless stream of incessant plastic particles everywhere you look," says Dr. Marcus Eriksen, director of education and research for the Algalita Marine Research Foundation, which studies plastics in the marine environment. "Fifty or 60 years ago, there was no plastic out there."
[...]
The problem with plastic bags isn't just where they end up, it's that they never seem to end. "All the plastic that has been made is still around in smaller and smaller pieces," says Stephanie Barger, executive director of the Earth Resource Foundation, which has undertaken a Campaign Against the Plastic Plague. Plastic doesn't biodegrade. That means unless they've been incinerated -- a noxious proposition -- every plastic bag you've ever used in your entire life, including all those bags that the newspaper arrives in on your doorstep, even on cloudless days when there isn't a sliver of a chance of rain, still exists in some form, even fragmented bits, and will exist long after you're dead.

Wow, that's pretty scary, especially the part about that vortex in the Pacific Ocean. Man, I can't even imagine something like that exists!!

Horrible as is must be, I think we should all be shown that sight. Maybe it would make us more aware of what we're doing to our planet.

As for a solution, seems like bringing your own bag would be the best one, or reuse whatever you end up using, be it plastic or paper:

The only salient answer to paper or plastic is neither. Bring a reusable canvas bag, says Darby Hoover, a senior resource specialist for the Natural Resources Defense Council. However, if you have to make a choice between the two, she recommends taking whichever bag you're more likely to reuse the most times, since, like many products, the production of plastic or paper bags has the biggest environmental impact, not the disposal of them. "Reusing is a better option because it avoids the purchase of another product."