Why do some people never get fat, while most of Americans do? Sure, one can blame eating too much popcorn and junk food and not getting enough exercise for the extra weight—but our eating habits may not be the only factor that determines our chubby destiny, argues University of California, Irvine’s Bruce Blumberg. There’s growing evidence that our exposure to plastic compounds —specifically obesogens—can disrupt the body’s metabolism, enough to make us gain weight.
Planet Green reports:
No one’s blaming these compounds for the country’s entire obesity epidemic—fast food and lack of exercise are not off the hook—but emerging research points to them as one cause of the unexplained tendency for some individuals to gain weight no matter what (or how little) they eat or how much they exercise. Obesogens seem to have the ability to disrupt the fundamental rule of weight management and body chemistry: weight gain occurs when calorie consumption exceeds the amount of energy burned.
It’s all about the timing and the amount of exposure to the plastic. Preventing adult weight loss might be too late, if it’s really childhood exposure to plastics that leads to a lifetime of weight problems.
Newsweek reported recently that:
In 2006 scientists at the Harvard School of Public Health reported that the prevalence of obesity in infants under 6 months had risen 73 percent since 1980. “This epidemic of obese 6-month-olds,” as endocrinologist Robert Lustig of the University of California, San Francisco, calls it, poses a problem for conventional explanations of the fattening of America. “Since they’re eating only formula or breast milk, and never exactly got a lot of exercise, the obvious explanations for obesity don’t work for babies,” he points out. “You have to look beyond the obvious.”
While plastics appear to be linked to obesity, scientists aren’t exactly sure how yet. In the meantime, it doesn’t hurt to exercise and eat right, minimize your exposure to plastics, and yes, hope that you have the skinny gene.
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DISCOVER: The Dirty Truth About Plastic
Image: flickr/ Phoney Nickle
Three sailors and a scientist are getting ready to sail 11,000 miles across the Pacific…on a boat made entirely of recycled plastic bottles.
Sounds like the opening of a bad joke, but the 60-foot catamaran is currently being constructed from more than 12,000 plastic bottles on a San Francisco pier. Each of the bottles has been pressurized with dry ice powder, which sublimates into carbon dioxide gas and makes the bottles rigid enough to withstand the endless seas.
The vessel, dubbed The Plastiki, will be launched in April and is expected to take more than 100 days to reach Sydney, stopping in Hawaii, Tuvalu, and Fiji along the way. The permanent crew members will be able to sleep in the watertight cabin made from recycled PET, and the passengers will rotate in throughout the voyage.
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As if there isn’t enough economic incentive to dispense with credit cards these days, a new card issued by Discover Financial Services [ed. note: no relation to DISCOVER, though they own Discover.com] now adds an environmental perk as well.
A new biodegradable credit card, released in December, will break down when exposed to microorganisms into carbon dioxide, water, and a mild salt. The New York Times reports that the card is made of biodegradable polyvinyl chloride, or PVC, and bears the same durability as a traditional plastic credit card. Yet it will decompose in a microorganism-filled environment, which the company says can be just about anywhere, including water, soil, a compost heap, or even a landfill, because the microbes operate anaerobically.
With 1.5 billion credit cards in use in the U.S. as of 2006, the ability to decompose will surely ease the burden on landfills, which have their fair share of other plastic to deal with. The trick behind the card is a secret that BIOPVC, the company that created it, will not give up, but they say no toxic PVC remains once the microbes break down the plastic. A Columbia University professor took a stab at how the process works, and said it can be activated by coating PVC with a material that attracts fungi, or alternatively one that attracts rather than repels water, which contains microbes that will then break down the PVC. (more…)
India’s capital city has issued a ban on all non-biodegradable plastic bags, effective immediately, although enforcement will be gentle initially. In time however, plastic toters in New Delhi will face up to five years in prison and up to 100,000 rupees ($2,034) in fines. The ban prohibits the “use, storage and sale” of all polyethylene bags of any size, shape, and thickness. If these punitive measures seem particularly harsh, officials say laws already in place that ban all but the thinnest plastic bags have been—like jaywalking laws in New York City—largely ignored in a city that generates about 10 million plastic bags per day.
But still, should plastic pollution be a top priority for a country where more than a quarter of the population live in abject poverty (the poverty threshold as defined by the Indian government is $0.40/day)? One hopes that the fines will be targeted to those who can afford them, shoppers at the new sprawling shopping malls and foreign tourists, for example, and not those who live in the slums where much of the plastic rubbish accumulates.
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