Persistent Plastic
by Marisa Buxbaum
$/ton is the environmental impact cost of manufacturing each plastic.
HDPE, LDPE, PP, and PS have roughly the same environmental impact
rating. PETE is about twice as high as these four. PVC is nearly six
times higher than PETE primarily because of carcinogenic emissions. Only
1.8% of packaging plastic is recycled.
Source:
ashlandfood.coop
Anyone who has ever struggled with opening a new CD, or
cut themselves on the sharp plastic of those pesky clamshell
containers, has felt the annoyance caused by packaging. Our irritation
is sparked as we wrestle those darned twisty-ties, or break a nail
trying to remove the stubborn wrapping on the cap of our favorite
condiment. Some of us may wonder if all that plastic obstruction is
necessary, or what happens to the remains of the offending wrapper. When
you trash the plastic wrap and Styrofoam and Ziploc bags, where do they
go? For that matter, what happens to all the other plastic disposables –
from cutlery to water bottles – that have arisen to accommodate the
throwaway, consumer lifestyle?
In an ecological sense, they go nowhere. Although transported from place
to place, plastic packaging and other non-biodegradable disposables are
the most persistent and infrequently recycled forms of waste. Every piece of plastic that has ever been produced is still in existence, with much of it collecting in our landfills and environment. Roughly one third of municipal waste in the U.S. is comprised of discarded packaging.
Most everything we buy these days is sold to us in some form of
packaging, used to protect the enclosed product and advertise its value.
These products may be customary and convenient, but they have serious
consequences that affect our ecosystems and our health. An examination
of the chemical components of commonly used plastics, as well as their
manufacture and disposal, paints an unsustainable picture.
Total 2009 U.S. municipal solid waste generation, 243 million tons. www.epa.gov
Polyvinyl chloride, or PVC, (#3) is an integral
component of packaging plastics and a major environmental offender,
generating greenhouse gases and toxic byproducts in its manufacture.
Chlorine’s chemical structure makes these byproducts especially
predisposed to buildup in the environment and in the bodies of animals
and people. DEHP, a softening plasticizer that is added to PVC and
labeled a potential carcinogen by the EPA, is prone to leaching. This is
worrisome, since PVC’s most common food-based applications are in cling
wrap (used to package supermarket goods, or to preserve leftovers at
home) and some food (squeeze bottles) and cooking oil containers. As
such, it is probably not a good idea to purchase, store, and/or
microwave food in cling wrap or containers marked with the “3” symbol on
the bottom, indicating that it is made with PVC. Although 7 billion
pounds of PVC is thrown away each year in the U.S., due to the nasty additives in PVC, only one-quarter of 1 percent is recycled.
www.healthsynergyrx.com Recycling symbols chart here: ig/recycling-symbols
Polystyrene, (#6) better known by its trade name
Styrofoam, is a material most of us are familiar with. We typically
recognize it in fast food containers, disposable utensils and plates,
insulation, and packing materials, but did you know that it can also be
found in computer housings, hairdryers, kitchen appliances, and toys?
Like PVC, both the manufacture and usage of polystyrene products
negatively impacts both our health and the environment:
-Polystyrene takes at least 500 years to decompose.
-The light, buoyant nature of polystyrene means it is easily washed
or windblown into storm drains and waterways, where it contributes to
marine pollution.
-Polystyrene contains both styrene and benzene, which can leach out
when the material comes into contact with hot or oily foods. The risk of
the former is uncertain (Source),
but benzene is a known carcinogen. Think twice about the takeout
Chinese and piping hot coffee, and definitely avoid microwaving
containers made from polystyrene.
-The production of Polystyrene, like most manufacturing processes, requires the unsustainable use of fossil fuels.
-Polystyrene can clog the digestive tracts of animals.
-Polystyrene is rarely recycled, and is not “closed loop.” For
example: if a Styrofoam cup is recycled, it won’t go into the production
of another Styrofoam cup, but rather a different product (E.G., packing
peanuts). This means more resources must be depleted in order to create
more Styrofoam cups.
-According to a 1986 EPA report, polystyrene manufacture is the 5th
largest generator of hazardous waste. 57 different chemicals are emitted
during the combustion of polystyrene foam.
-Global production of polystyrene in 2010 was 15.4 million metric tons.
www.projectaware.org
The list of environmentally hazardous packaging and other disposables goes on. Did you know that more than 500 million disposable plastic straws are used in the U.S. per day? (Source)
Or that China uses 45 billion pairs of disposable chopsticks per year,
resulting in the annual decimation of 25 million trees? (Source)
Bottled water produces 1.5 million tons of plastic waste per year. It
is thousands of times more expensive than tap water, and in the U.S.,
far less regulated – despite the pristine imagery printed on the label,
what you are drinking may be no cleaner than what you get from the faucet.
The transformation of water into a pricy, wasteful, yet somehow
desirable commodity may represent one of the biggest marketing scams in
history. Instead of wasting money on the Dasani and Evian, protect the
environment – and your wallet – by using a Thermos. The best options are
stainless steel, lined aluminum, or glass. If you have concerns about
the tap water quality in your community or don’t like the taste,
installing a carbon filter is an easy and cost-effective remedy.
-At least 90 percent of the price of a bottle of water is for
things other than the water itself, like bottling, packaging, shipping
and marketing.
-44 percent of ‘purified’ bottled water sold in the U.S. started out as municipal water.
-It takes about 1,100 to 2,000 times as much energy to produce and
transport the average bottle of water to Los Angeles as to produce the
same amount of tap water.
-About 1 million tons of plastic PET water bottles are produced in
the U.S. each year, requiring the energy equivalent of 50 million
barrels of oil. 76.5 percent of these bottles end up in landfills.
-Between 1997 and 2007, bottled water consumption in the U.S. more
than doubled, from 13.4 gallons per person to 29.3 gallons per person.
-26 to 41 percent of the 2.4 million tons of PET plastic discarded every year is bottled water bottles.
-Because plastic water bottles are shielded from sunlight in landfills, they will not decompose for thousands of years.
And if that isn’t enough to chew on, consider how much of your tax dollars went to unsustainably quenching Congress’ thirst...
How can packaging waste and disposable waste be minimized?
When you wander into a supermarket, chances are that the majority of
what you see will be packaged, and not entirely without reason. Until
all foods are locally sourced, transported products must be ensured a reasonable shelf life, lest they rot before
consumption and go to waste. This does not mean that there isn’t a
dramatic overuse of disposable packaging, or that all kinds are created
equal. When shopping, you can try to select items that use minimal or
reusable packaging, and bring your own reusable bags to carry them home
with. Choosing recyclable cardboard and glass over plastic and
polystyrene is less likely to harm the environment and your health. When
you shop try to buy in bulk, thereby reducing individual packaging.
European consumers should keep in mind that products marked with the
Green Dot are manufactured by companies that help fund recycling and waste recovery efforts.
Plant-based eco-packaging is a growing industry, and companies like Earthcycle and Mycobond
make both ethically-sourced and sustainable products. Mounting
environmental concerns are eliciting some gradual progress on a systemic
level, and pushes for legislative action can force companies to use and
develop better packaging alternatives. California has already moved to ban the use of polystyrene containers in foodservice, and distribution will halt by 2014. A 2007 Nielsen Company survey spanning 48 countries demonstrated that 40% of respondents were “very concerned” about levels of packaging waste,
and a report from the Grocery Manufacturers Association found that food
and beverage companies have managed to slash 1.5 billion pounds of
packaging since 2005. Sights are set on a further reduction of 2.5
billion pounds by 2020. (
Source) Walmart has pledged to reduce its packaging weight 5% by 2013, and
ASDA, its UK counterpart, has cut 27% of its packaging weight since 2005.
U.S. Walmarts have also made strides in transitioning away from PVC
packaging for its sheets and tablecloths. A recent New York Times
article highlights corporate efforts to cut costs and eliminate excess:
www.nytimes.com.
These companies need our continued urging, and putting our money where
our mouths are, makes a difference. Wherever possible, relinquish
disposable goods in favor of those that are reusable and sustainable.
Avoid packaging that can hurt you and the environment and is destined to
sit in landfills. We have the power to communicate that waste reduction
is a priority by carefully choosing what we buy.
Resources:
Waste prevention and recycling starts at home, and the CalRecycle website from CA.gov provides ideas and resources:
www.calrecycle.ca.gov
Food and Water Watch.org, “Issues: Bottled Water.”
www.foodandwaterwatch.org. You can sign their “Take Back the Tap” pledge not to drink bottled water here:
action.foodandwaterwatch.org
Innovative, edible, and eco-friendly “Jelloware” cups – hopefully available for sale soon (under “Recent Projects):
www.thewayweseetheworld.com
Read about the pros and cons of biodegradable plastics like PLA and PHA:
TIME Magazine, 2010, “The Promise and Pitfalls of Bioplastic.”
www.time.com
List of U.S. cities and counties that have banned, or are considering banning, polystyrene foodware:
riseaboveplastics.blogspot.com
Not just wasteful, but annoying: 2010 NY Times article on Packaging
Rage, or what happens when you spend 20 minutes trying to open the new
pair of headphones you bought. It has spurred Amazon.com to decrease the
amount of packaging it uses to ship to online buyers, reducing both
stress and waste.
www.nytimes.com
Polysteyrene Info:
Sources:
www.businessbarbados.com, www.earthresource.org,
www.sriconsulting.com