09-10-2012, 01:36 PM
Plastic Bag Pollution
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Pollution
Plastic bags are difficult and costly to recycle and most end up on landfill sites where they take around 300
years to photodegrade. They break down into tiny toxic particles that contaminate the soil and waterways and
enter the food chain when animals accidentally ingest them.
But the problems surrounding waste plastic bags starts long before they photodegrade. Our planet is becoming
increasingly contaminated by our unnecessary use of plastic bags.
Big black bin liners, plastic carrier bags carrying advertising logos, clear sandwich bags and a variety of other
forms are all polluting our environment. They're lightweight, handy and easily discarded. Too easily discarded.
While they were rarely found during the 60s and 70s, their usage has increased at an alarming rate since they
became popular during the 80s. Just take a look around you. Plastic bags can be seen hanging from the
branches of trees, flying in the air on windy days, settled amongst bushes and floating on rivers. They clog up
gutters and drains causing water and sewage to overflow and become the breeding grounds of germs and
bacteria that cause diseases.
Dangers to Sea Life
Plastic bags are now amongst the top 12 items of debris most often found along coastlines ranging from
Spitzbergen in the north to the Falklands in the south.
Animals and sea creatures are hurt and killed every day by discarded plastic bags - a dead turtle with a plastic
bag hanging from its mouth isn't a pleasant sight but mistaking plastic bags for food is commonplace amongst
marine animals. Plastic clogs their intestines and leads to slow starvation. Others become entangled in plastic
bags and drown.
Because plastic bags take hundreds of years to break down, every year our seas become 'home' to more and
more bags that find their way there through our sewers and waterways. Every bag that's washed down a drain
during rainfall ends up in the sea - every bag that's flushed down a toilet (many small bags are), ends up in the
sea - every bag that's blown into a river will most likely end up in the sea.
Add to that the enormous amounts of energy that's used every year in order to manufacture these bags and it's
no surprise that pressure is being put on governments to make changes and consumers to re-think their
attitudes.
Pollution Taxes & Bans
Following the levy of taxes on plastic bags in Ireland, usage dropped by 90 percent. Several countries have
already banned their use and more will doubtless follow.
While anything that lowers our consumption is good, why wait until we're hit financially before we change our
habits when changes aren't difficult to make?
How about taking previously used bags with you next time you go to the shops? Or even better - turn back time
and do as grandma did and take a sturdy bag with you every time you go shopping.
Shop-owners would much rather you use their bags as they're a convenient and cheap form of advertising, but
what's more important, shareholder profits or the environment?
Plastic bags can be re-cycled although only about one in every 200 ever find their way to a re-cycling unit. Find
out if there's a re-cycling bin near you and, if not, lobby your local authority for one.
Greenhouse Gases
Some countries have introduced so-called "environmentally friendly plastic bags" that are biodegradable.
These bags take about three years to break down into practically nothing and while that sounds like an
attractive solution, the truth is that the process of breaking down these petrol based bags causes carbon to
become methane which is a greenhouse gas.
It's also possible to get 'plastic' bags manufactured from corn. These break down very quickly and give off no
more methane than any other corn product on landfill sites. Unfortunately, they're more expensive to produce
and few shops use them.
Until a real alternative is freely available, the only solution is a re-think of attitude:
Re-use bags when shopping.
Choose biodegradable bags to use for litter (photodegradable bags used in this way are guaranteed to
end up on landfill sites taking hundreds of years to break down).
Re-use large plastic sacks whenever possible
Refrigerate food in containers rather than plastic bags
Garbage Bins
One question that's often raised in connection with the plastic bag dilemma is what should be used to line bins
if not plastic bags?
To answer that, let's go back in time to when plastic bags were yet to become commonplace. There's no need
to go any further back than the 70s. What did we do?
For one, we had far less garbage. Goods had much less packaging than is the case today so we didn't fill our
bins as quickly. Peelings, eggshells, tea bags and coffee grounds were all composted, as was any paper that
wasn't needed for lighting fires.
What was left went into an unlined bin with anything sloppy being wrapped in newspaper first.
If we choose carefully when shopping so as not to bring home more packaging than necessary - there's really
no point in bringing it home just to throw it straight in the bin when we unpack - and keep a compost bin going,
the amount of waste that goes into the kitchen bin will be halved, at least.
Now that we have re-cycling plants, even less will need to be binned. Tins, bottles and paper (we generally
have too much for the compost heap these days) can all be delivered to the local re-cycling point.
If you really must line your bins, instead of buying plastic liners, it's possible to use newspaper. You won't be
able to pull everything out, tie it up and put it out, of course, but you'll be able to tip it from your kitchen bin into
the main bin without too much mess. People managed before; perhaps the comfortable lives we have today
just make everything appear more difficult than it really is.
Conclusion
By refusing to use plastic bags, you can make a huge difference to the pollution problem. Remember that each
person uses about 83 bags a year. If there are four people in your family, that's 332 plastic bags less every
year.
That's 332 bags less that will:
Release toxins into the ground water from landfill sites
Stay in the environment for hundreds of years while they break down
Get into the food chain through animals that ingest small particles of plastic
Waste energy during the manufacturing process
Kill any of the estimated 100,000 marine animals that die each year of plastic pollution