Monday, November 17, 2008

Kicking the Single-Use Petroleum-Based Plastic Bags Habit

I've become aware that available to the average consumer are totally biodegradable corn-based plastic bags. This plastic was originally created for farmers and used as crop cover, that would decompose into the land. So someone, who will surely going to eco-heaven, has started marketing products using this innovation to regular consumers needing plastics for their homes. Surely an executive somewhere realized that there is money to be made in this area of the market, so it's not a totally altruistic deed, meriting eco-sainthood. Still, reducing the petroleum-based bags that are produced (harmful part 1) and then litter our planet, both on top, like clogging shorelines and waterways, as well as sitting for hundreds of years underground in landfills (harmful part 2 and 3), I applaud and support the effort! These bags from Biobag can decompose between 10 and 45 days, leaving behind no residue. While a bit pricey, I think there is an easy, and long-term cost-effective way to incorporate these into our home.

We re-use plastic grocery and produce bags in a variety of ways before ultimately taking the bags to the recycling bin at the Whole Foods. However, some plastic bags in our house are used only once or at most a few times and those are used to:
* line the 13-gallon kitchen garbage can
* line an identical 13-gallon bin for recycling
* line the wet cloth diaper pail
* carry with us on our dog walks

These are my next steps in order to try to eliminate our household reliance on the single-use petroleum-based plastic bag, by replacing those old bags with either these corn-based, compostable plastic bags or with washable liners:

Step 1) Purchase kitchen bags ($4.75 for a box of 12) and doggie waste bags ($4.29 for a bundle of 50) from BuyGreen.com. Use these kitchen bags for the kitchen waste only, to which we accumuluate 1 bag per week. So a box of 12 would last us 3 months. (Not too bad for less than $5.) We will stop using the plastic grocery bags and produce bags for dog waste and instead use these Biobags exclusively. The plastic grocery bags can still be re-used for produce at the store and for other purposes, but will ultimately end up in the plastic bag recycling bin.

Step 2) Purchase 4 stuff sacks (2 small ones--$6.95 each--for the diaper pail and 2 large ones--$17.95 each--for the kitchen recycling bin), like these found at TinyTush.com, the diapering website where I purchased Thora's cloth diapers. Line the wet cloth diaper pail and wash it along with the diapers when needed. Since I will have two, I'll always have a clean diaper pail liner to use. The same method will apply for the recycling bin, which I was lining before to keep from cleaning up the inevitable leaks of rinsed-out-but-not-totally-dry bottles of beer, wine, juice, milk, random gunk, etc. This way, we'll dump the recycling and wash the liner when needed, replacing it with the spare, clean liner.

While there is the unavoidable upfront cost of the washable stuff sacks, I think they will pay for themselves relatively quickly, since we'll have reduced our home's need of a plastic bin liner by over 50%. And even if they don't quite pay for themselves that quickly in terms that are apparent in our monthly budget (what would be quick enough?), I'm not sure that I care all that much. If the financial burden for me is slightly more so that the environmental burden on the planet and my fellow human beings can be slightly less, well, it's a no-brainer.

2 comments:

Summer Ryan Doyle said...

Those are great ideas! I was going to suggest using paper bags to line the recycling bin but a washable bag is even better.

Michael said...

Plastics from corn do NOT have a smaller carbon footprint than conventional plastics – consider the hydrocarbons burned by the machines which clear the land, plough and harrow the land, make the fertilisers and pesticides and bring them to the land, sow the seed, harvest the crop, take it to the factory, and run the autoclaves.

Land and water should be used to grow food, not to make plastic. Also as they are thicker and heavier than normal plastic “compostables” need more trucks to transport them, using more diesel fuel and occupying more road space.

“Compostable” plastics are too expensive for everyday use, and there are very few composting facilities. Also, as it is difficult to separate compostable plastics from other plastics, many industrial composters do not want plastic of any kind in their feedstock, and it is not suitable for home-composting. Compostable plastics damage the recycling process if they get into in a normal plastic recycling waste stream

Ordinary or recycled plastic will lie or float around in the environment for decades, but it can now be made oxo-biodegradable.

This is done by including d2w additive (see www.biodeg.org) which makes it degrade, then biodegrade, on land or at sea, in the light or the dark, in heat or cold, in whatever timescale is required, leaving NO fragments NO methane and NO harmful residues. Oxo-bio can be tested according to American Standard 6954, and is certified safe for food-contact. It is made from a by-product of oil refining which used to be wasted, so nobody is importing extra oil to make it. It can be recycled, and made from recyclate, and there is little or no additional cost.