16-year old discovers plastic-eating microbe: Is this the answer to our plastic problem?

Last week, Daniel Burd, a 16-year old Canadian student, won the top prize at the Canada-Wide Science Fair in Ottawa for his discovery of microbes that will break down polyethylene bags. This article in The Record explains his procedure and how he was able to isolate the specific microbes that will break down the plastic. So far, his microbes have achieved a 43% degradation of the plastic after 6 weeks. Burd theorizes that in 6 more weeks, the plastic would be completely gone, although he has yet to prove that.

First, I want to congratulate Daniel for his hard work on behalf of the environment and for possibly achieving what so far adult scientists have not been able to. Amazing. Being able to biodegrade plastics without the use of toxic heavy metal additives (as are used in oxo-degradable plastics) could be a useful tool in cleaning up the plastic mess we have already created.

But does this mean that plastic bags are now off the hook and that plastic packaging has been redeemed? Can we continue to use as much of it as we want guilt-free? Plastic is still made from oil, a non-renewable resource. It's manufacture uses energy and creates pollution in the form of pre-production plastic pellets, aka nurdles, that can escape and cause harm to the marine environment. And unlike paper bags which biodegrade easily and naturally when exposed to the elements, plastic bags will need to be processed in a controlled way at a temperature of 37°C (99°F) because the microbes that break them down don't exist in abundance in the natural world, certainly not in the cold ocean.

Daniel's discovery could be good news for the environment, but only if it's used as a way to break down the plastic waste that already exists and isn't simply used as an excuse to create more. When asked the question, "Paper or plastic?" we're learning to answer, "Neither. I have my own reusable bag." Paper is biodegradable, but we don't use biodegradability as a reason to cut down more trees for bags. Biodegradable plastic, whether made from corn or sugar or now possibly oil, shouldn't be squandered either.
 

 

Week 29 Results: 2.6 oz. of plastic. Making a change.

This past Friday, I attended a planning meeting for Green Sangha's 2008 Rethinking Plastics campaign. At that meeting, one of the members showed us some video footage of what happens to the plastic recycling that we put into our curbside bins. I knew that most of our plastic was shipped to China, but until seeing this heartbreaking video, I didn't think much more about it. Please watch this short clip from Britain's Sky News and then see how you feel about recycling plastic:



(If the embedded video doesn't play in this window, or all you get is a commercial, try this link instead.)

Yes, this story focuses on Britain's plastic waste. But in the U.S., we also ship most of our plastic to China, causing health problems and pollution in our attempts to be "green."

Since I started this project, I have tallied all of my plastic waste, recycling those items that are accepted in Oakland, SF, or Daly City, and holding onto the rest. From now on, I'm going to hold onto ALL of it, recyclable or not. If plastic recycling is such a dirty business, we ought to be taking care of it here at home instead of shipping it off to poorer countries with lower environmental standards.

My new commitment to hold onto all my plastic is similar to that of a new blogger who is collecting and tallying his waste, Dave Chameides at 365daysoftrash.com. He has vowed not to throw ANYTHING away for a year but to tally it all and figure out what it is and what can be done with it. He says, "Any waste that I generate that can be recycled, will also be saved. Recycling is better than 'throwing away' but it still takes energy and creates waste so I think accounting for recycling will be an important factor." Perhaps the video above is another reason to hold onto all of it.

So, that said, here is the tally for this week, the first of 2008:



Non-recyclable items used this week but purchased before the plastic project began:

• 1 Safeway ice bag. This ice was sitting in our freezer for months and months, and we finally used it up chilling a bottle of New Year's Eve champagne.


• 1 cap from a bottle of Safeway rubbing alcohol. See below.

Recyclable plastic bought before the plastic project began (although as mentioned above, they will not be recycled):

• 1 bottle of Safeway rubbing alcohol (#2 plastic). Is it possible to find rubbing alcohol in glass or is it only available in plastic these days? And do we need it? The only thing I was using it for lately was in a homemade ant spray recipe. I could probably substitute vodka or grain alcohol. I can sterilize a needle for removing splinters with a match. My mom used to clean oral thermometers with alcohol, but I just use soap. Cuts and bruises can be cleaned with soap and water. Alcohol seems like a staple of home medicine cabinets, but do we actually need it?

New plastic waste.

• 2 Refresh Endura single-use eye drop containers (#4 plastic). Are my eyes getting better? I haven't been using as many containers of drops because I've just been lazy about putting them in at night. And so far, no traumatic cornea mornings. I'm just seeing how far I can press my luck, I think.


• 2 plastic ties and 1 plastic tag from a bamboo scratching post purchased for the kitties. More on this item in a post later this week.


• 1 plastic bag from inside a box of crackers. These were brought to our New Year's Eve party by a friend, and I ate some.


• 1 Wallace & Gromit cheese wrapper. Very cute. Also brought to the party by a friend. Of course I had some.


• 1 plastic cork from a bottle of Boissonneau Chateau Moulin de Ferrand Bordeaux Blanc. This was the last bottle!


• 1 cap from a glass bottle of Straus organic nonfat milk.

I want to welcome the new readers who have found their way over to Fake Plastic Fish from the 365 Days of Trash blog. I have a lot of exciting things to write about this week, including a trip to a landfill on Wednesday.
 

 

Woman drinks wine, unwittingly threatens endangered animals

I love wine. I really do. And I've drunk a fair amount of it during the weeks since I started my plastic project. But it wasn't until I read this article a couple of days ago that it occurred to me that some of the wine corks I've pulled have been made of plastic! And those plastic corks didn't even make it into my weekly tallies. Good lord, was I drunk or something??? How could I have missed them?

Fortunately, I like to save my wine stoppers, so I was able to pull out my collection and count them up. For the record, there are 31 cork stoppers and 11 plastic stoppers: 26% plastic!

So why are plastic corks, in addition to all the usual plastic problems, threatening endangered animals? Because they compete with natural Mediterranean cork forests, which not only provide humans with stoppers for their various libations, but also provide unique habitat for some of the world's more unusual creatures, such as the Iberian Imperial Eagle, the Barbary Deer, and Iberian Lynx, which according to Wikipedia, "is the world's most threatened species of cat."

You can read more about the Mediterranean cork forests and WWF's campaign to save them, as well as watch a beautiful video showing how cork is harvested and the people and animals whose lives depend on it.

Also for the record, the Boissonneau Chateau Moulin de Ferrand Bordeaux Blanc, of which I just bought a whole case, is delicious... and has plastic stoppers. Well, they'll be in my weekly tally until they're gone, and then I'll find a plastic-free crisp white wine to enjoy. Any suggestions? (Not crazy for chardonnay.)
 

 

Uganda bans plastic bags, promotes banana leaves

Sun 1 Jul 2007, 13:24 GMT

KAMPALA, July 1 (Reuters) - A ban on plastic bags in Uganda took effect on Sunday to cut down the stinking piles of rubbish that litter its dusty capital and other urban areas, breeding germs and poisoning water supplies.

Officials want Ugandans to instead use banana leaves, the traditional material for carrying goods.

Uganda's ban followed a similar one on Tanzania's Zanzibar islands last year. There have also been moves in both Kenya and mainland Tanzania to raise duties on plastic bags, which dot Africa's urban and rural landscapes with depressing regularity.

Ugandan Finance Minister Ezra Suruma announced the ban on "buveera" -- polythene bags in the local Luganda dialect -- during his budget speech last month in the east African nation.

"Due to serious environmental concerns and the difficulties in the disposal of polythene bags and plastic containers, action was required in order to encourage producers and consumers to minimise (their use)," he said.

Environmentalists say discarded bags, which pile up on roadsides and unused land, spread disease and hurt wildlife.

In Uganda, the only exception is the scavenging Marabou storks who thrive on the bags.

Rubbish often ends up in wetlands surrounding Lake Victoria, where it pollutes water supplies. Sometimes it is burnt, releasing toxic chemicals into the air.

Most of Uganda's cities lack the resources to properly dispose of more than 10 percent of the trash they produce.

Under the new rules, companies are forbidden from producing, importing or using plastic bags. But it is unlikely individuals will be punished for using existing ones.

© Reuters 2007. All Rights Reserved