A breakthrough in compostable plastic might mean litter like this could degrade safely and quickly in your compost bin.
Corn and other "compostable" bioplastics aren't as green as you'd think. Most don't break down in a conventional compost bin and end up in the landfill where they don't decompose at all. Researchers at the Imperial College of London are about to change the bioplastics game, developing a truly compostable cup.
Individuals would be able to compost these new, sugar-based cups in their home bins. The glucose molecules that make up the plastic would react with moisture over time and break down into harmless components.
Another big concern with corn-based plastics is its effect on the food supply. Rather than tapping food sources like sugar beets, the sugar for this new plastic comes from trees and grasses or even from agricultural and food waste. Dr. Charlotte Williams, who is heading up the research, calls these non-food sources the technology's "key breakthrough."
Not only does their sugar plastic address the food issue, it uses far less energy and water than current bioplastics.
The one thing I wonder about this new plastic is how much land it would take to grow enough trees and grasses for large scale production. Whether they're food crops or not if it takes vast amounts of land to meet demand, it would pose its own problems. I'd hate to see us cutting down forests in order to grow plants for plastic production.
Williams and her team are now developing "specific material characteristics" for different applications, like food packaging and medical uses. Working with some commerical partners, they say the sugar plastic is about two to five years away from being available on the market. In the meantime, maybe the best solution for drinking on the go is to bring your own, ultra cool, reusable cup?
[via Re-Nest]
Image Credits:
Plastic Cups. Creative Commons photo by cafemama
Raw Sugar. Creative Commons photo by ayelie
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Hey there, love the post! My name is Heather Colvin and I am the editor for a company called Green Monkey, a yoga and Balanced Living company based out of Miami. We put together a monthly mailer on health, wellness and sustainable living and I ran across your blog. We are looking for writers for our April guide, which is based all around sustainable living. If you would be interested in contributing content we would love to feature you. Please feel free to email me at heather@greenmonkey.net if you are interested in writing for us and we can discuss details. Thanks!
Heather
I am so glad you wrote about this! I have been furious over the false marketing of cornstarch disposables. They are only compostable in commercial composters, which very few counties have. Not only is it misleading but it is promoting bio-engineered corn and all the inherent problems. I am glad to hear about an alternative but I still think reusing is the best way to go.
Thank you!
@sslopes
Wasn’t aware of the corn starch thing .. thank you!
However I’m with you when it comes to land space. After all, the stuff’s got to be grown somewhere, and I’ll bet my bottom dollar growing this will be a better revenue earner than anything food-producing.
This is why green has to *start* with using more environmentally friendly products, like this, but *END* with wholesale livining and social changes.
Sorry to shout .. I must need to stroke the cat or something