Paper Bags VS: Plastic Bags - Real Numbers
Are plastic bags getting a bad reputation?
Look in almost any newspaper and more than likely you will find an article about local government that is considering to somehow regulate plastic bags. It is becoming easy to hate the "pitiful" plastic bag!
Paper vs. Plastic:
Articles usually leave out the facts as well as the side by side comparison. A truthful look at what is required to produce 1000 plastic bags versus 1000 similar paper bags. If the biased media would present the facts, as discerning people we could make educated and wise decisions.
|
If all the shoppers using plastic bags last year had used paper bags instead, they would have increased the amount of solid waste by over 100 million tons and taken up 7 times more space in landfills.
|
|
|
Paper Grocery Bags VS: Plastic Grocery Bags:
|
|
|
1000 Grocery Size Shopping Bags |
|
|
|
|
|
|
|
|
Paper |
Plastic |
|
|
Weight |
140 lbs.
|
15 lbs.
|
|
|
Cubic Feet |
17.8 cu. feet
|
0.4 cu. feet
|
|
|
Cost |
$230
|
$35
|
|
|
Shipping |
$28
|
$3
|
|
|
Total Cost |
$258
|
$38
|
|
|
Diesel used in transit |
0.58 gallons
|
0.06 gallons
|
|
|
Biodegradable? |
yes
|
yes
|
|
|
Recyclable? |
yes
|
yes
|
|
|
Air Emissions |
3.225 lbs. solids
|
1.62 lbs. solids
|
|
|
Petroleum used |
3.67 lbs.
|
1.62 lbs.
|
|
|
BTUs required |
1,629,000
|
649,000
|
|
|
Indefinite recycled life? |
no
|
yes
|
|
|
USA raw materials? |
yes
|
yes
|
|
|
Shipping assumes truck freight at $20/cwt for 1,000 miles average. 6 mile per gallon hauling 40,000 lbs in a full truck load. Emission and BTU data from The University of Texas at Austin, Michigan Technological University, and the US Environmental Protection Agency 2001. Bags are compared with new materials. Plastic bags require less energy to collect and recycle than paper bags
|
-Source: Nashville Wraps
|
Poly bags are now bio-degradable
Without overloading you will all the tried and true data there is a new additive that can be put into HDPE plastic bags. It helps the Polyethylene molecules biodegrade. This process takes place aerobically or anaerobically. It can happen with or without the presence of light. Even in landfill conditions which are normally not conducive to bio-degradation, this action can occur. Paper can discintegrate or biodegrade when air and moisture are present, neither of which are abundant in landfills.
What is the root issue with plastic bags?
Litter is the root problem because plastic bags in our past did not degrade at all or were slow to degrade . Today plastic bags can be biodegradable. We do not have to get rid of a misunderstood and good product. A recent newspaper article in a national newspaper states that litter is down in San Francisco due to the ban on grocery store Poly bags. Is that true or are citizens more sensitive to their actions and acting responsible
Recycling paper versus plastic bags
Plastic bags do not “down cycle”, meaning plastic bags can produce plastic bags infinitely. On the other hand, paper has a limited recyclable life span. The fibers deteriorate too much after continued re-pulping. At the end of papers recyclable life it can only be used in fillers and lower grade materials. Paper and plastic are easy to recycle these days. Paper costs more and requires more energy to recycle. Plastic bags are ground up, extruded and in minutes are new plastic bags.
Green Plastic bags made from agriculture?
PLA (corn based) plastic bags are not recyclable! It is “Compostable”. There is a vast difference. "Corn" bags would disrupt the recycling of normal PE plastic bags and to begin with they cost as much as paper. PLA is great for many products, just not grocery bags in our opinion.
Are plastic bags made out of oil from overseas?
There is less foreign oil used to make plastic bags than there is to make paper ones, due in part because less energy is required. True, some PE is made from oil derivatives; but take a look at the source of that poly resin. In years past, Asian resin was used to make the plastic bags. Currently the Asian governments no longer controls PE resin. Today's sources come from home and start from Natural Gas and a by-product of the distillation of crude oil (foreign or local) but not the oil itself. Ethane Extraction is advancing in the scientific community with exciting new developments and research. Fewer and fewer new materials, ethane or otherwise are needed to make plastic bags.
Where does this leave us?
Both paper and plastic when made in the USA from recycled US materials by emission reducing processes are not particularly bad, they just have different properties.
Educated people make educated choices. Plastic or paper? You decide, both are good and sustainable products.
|
