imothy D. Sands, at left, director of Purdue's Birck Nanotechnology Center in Discovery Park, and graduate student Mark Oliver, operate a "reactor" in work aimed at perfecting solid-state lighting, a technology that could cut electricity consumption by 10 percent if widely adopted. Purdue researchers have overcome a major obstacle in reducing the cost of the lighting technology, called light-emitting diodes. (Photo by David Umberger, courtesy of Purdue News Service)
Unless you like to live by candlelight,
you have to buy lightbulbs. But the options
out there aren’t that great. Jessi Ziegler reports how all that might change soon:
Transcript
Unless you like to live by candlelight,
you have to buy lightbulbs. But the options
out there aren’t that great. Jessi Ziegler reports how all that might change soon:
Plain-old incandescent lightbulbs are not efficient. That’s
old news.
And fluorescents? The color is funny and they have toxic
mercury in them.
So, what option is left?
LED lights. They’re as efficient as compact flourescents
minus the mercury.
The problem? They’re one-hundred-dollars-a-bulb
expensive.
But scientists at Purdue have been working on a way to
cut that cost.
Researcher Timothy Sands says in about 5 years, LEDs could
cost the same as the other bulbs.
“So, the nice thing about it is you can save energy, and
actually save money over the long haul – even though the
initial cost is very high right now, without changing what
you’re used to, or without lowering your standards for
lighting.”
And Sands says another big advantage of LEDs is you’d only
have to change the bulbs every 15 years.
For The Environment Report, this is Jessi Ziegler.
If you don't recycle, the bin can make a handy shelf. Cities are trying to get people who don't recycle much or at all... to get into the habit by offering them incentives.
Recycling can have some economic benefits. But as a country, we’re
just not doing that much of it. The US Environmental Protection
Agency says the national recycling rate has been hovering around 30%
for several years now. Rebecca Williams reports some cities
are trying to get people to recycle more… by paying them to recycle:
Transcript
Recycling can have some economic benefits. But as a country, we’re
just not doing that much of it. The US Environmental Protection
Agency says the national recycling rate has been hovering around 30%
for several years now. Rebecca Williams reports some cities
are trying to get people to recycle more… by paying them to recycle:
It’s not easy getting someone to admit they don’t recycle. But I was
over at my friend Andrea’s house for dinner, and she confessed.
(Sound of Andrea opening a can of beans)
“Normally I would take this can and throw it away in the garbage and
never look at it again. I don’t really like cleaning garbage to throw
it away.”
Now in her defense, she doesn’t really produce that much trash to begin
with. Maybe just one small bag a week.
Andrea says it just feels like too much work to recycle. Taking the
labels off, cleaning out the cans, walking down four flights of stairs.
Though they’re indoors and carpeted.
(Sound of garage door opening)
Right now she’s using her recycle bin as a shelf. She’s got some books
and a quart of oil sitting on it.
If Andrea did recycle, she’d have to drag her bin out to the curb from
the garage. About oh, three feet or so.
“In the mornings I run pretty late so just taking the garbage out and
lugging it down the stairs along with my bags for work is quite a hassle in
and of itself and I’m proud of myself for doing that, so… (laughs).”
Now… my friend can’t be the only one out there who doesn’t recycle.
A recent survey found that 28 states reported a decrease in their
recycling rates since 2001.
That’s not good news for cities, because cities can benefit from
recycling. If they can divert enough recyclables from the waste
stream, they can avoid some of the high costs of disposing waste in
landfills.
But even if you have trucks that drive around and pick up people’s cans
and newspapers from their curbs, there’s no guarantee they’ll put them
out there for you.
Unless, of course, you offer them a reward.
Some cities on the East Coast are paying people to recycle. They’re
using a company called RecycleBank.
With RecycleBank, you get a recycling container with a tracking chip
embedded in it. You can toss all your cans and newspapers and bottles
into that one container… so, none of that annoying sorting.
Ron Gonen is the company’s co-founder.
“There’s a mechanical arm on the truck that picks up your container,
reads the chip, identifies that your household recycled and how much
your household recycled. The amount that your household recycled is
translated into RecycleBank dollars.”
Those RecycleBank dollars can be cashed in as coupons to shop at more
than 300 stores.
“We really look at it from the lens of the recycling industry and that if
your household recycles you’re actually creating value, and some of
that value should be passed back to you.”
Gonen says each family can earn up to $400 a year. He says people are
so into it, they’re even bringing stuff from work to recycle at home.
And he says recycling rates have tripled or even quadrupled in
neighborhoods using RecycleBank.
But some cities have found incentives only work up to a point. So
they’re making it against the law not to recycle. Seattle, for
example, won’t pick up your trash if there’s stuff in it that could be
recycled.
Timothy Croll is Seattle’s Solid Waste Director. He says trash
collectors aren’t going through trash cans, but they are peeking in.
“It’s not like we’re taking these things into an MRI or anything like
that it’s just what the garbage collector can see at the top when they
open the lid.”
Croll says the law works. He says only a few trash cans have been left
behind with a note. And Seattle did try incentives first. The city
charges residents less for trash collection if they use a teeny little
trash can and recycle a lot more. Croll says that’s been pretty
successful. But he says the city wanted to push for even more
recycling… so, they made it a law.
“Some tools work better for some people than others. For some people
it might be they know it’s the right thing to do, but their lives are
busy, and unless you give them one more reason they’re just not going
to get over that threshold and do it. It’s like yeah I know, I know I
should floss too, you know?”
Croll says it’s up to cities to first make recycling convenient… And
then try sweetening the deal.
You know, my non-recycling friend DOES recycle her soda cans. She
lives in Michigan, so she gets 10 cents back for each one. It’s enough
of an incentive that she’s saving bags of cans at work and stashing
cans in every corner under her kitchen sink.
The cost of oil is topping out near 70 dollars a barrel and the nation is sending billions of dollars to unstable foreign countries to get it.
With that
in mind, many Americans have begun to think about biofuels from domestic crops. Biofuels such as corn ethanol and soy diesel are the most popular right now. But researchers are looking into plants that don’t require the fertilizers and pesticides those crops need. The GLRC’s Richard Annal reports on one crop that could make ethanol much more efficiently:
Transcript
The cost of oil is topping out near $70 a barrel and the nation is sending billions of dollars to unstable foreign countries to get it. With that in mind many Americans have begun to think about biofuels from domestic crops. Biofuels such as corn ethanol and soy diesel are the most popular right now, but researchers are looking into plants that don’t require the fertilizers and pesticides those crops need. The GLRC’s Richard Annal reports on one crop that could make ethanol much more efficiently:
(sound of pouring liquid)
Researcher Timothy Volk is showing me some liquid that is on its way to becoming biofuel.
“So what comes out of this is a brown liquid.”
This murky brownish substance contains sugars that have been extracted from wood chips. Separating sugars from organic materials is an essential part in the production of the biofuel ethanol, and a new method being developed at the School might revolutionize that process. This lab is at the School of Environmental Science and Forestry in Syracuse, part of the State University of New York system. Everybody just calls the school ESF. What makes the process at ESF different is the use of water instead of harsh chemicals as a means of extracting sugar and the use of wood from a type of willow as stock material.
The extracted sugars are then fermented and used to produce ethanol. Mix 85 percent ethanol with 15 percent gasoline and you’ve got E-85. Several models of cars can burn E-85. It burns cleaner than petroleum based products, and reduces the dependence on foreign oils.
ESF’s Timothy Volk says this method differs from others being used, creates several by- products, and leaves very little waste material.
“What’s left over still looks like a wood chip. That could go to the paper industry, and you could still make paper out of it, or you could use that wood chip to produce renewable heat and power. One of the beauties of this is that from a ton of hard wood chips from the forest or willow or where ever it comes from you’re making multiple products and there’s not a lot left.”
For stock material ESF researchers are experimenting with the use of the willow shrub tree. This plant is native and grows to over ten feet tall. The researchers say willow beats corn hands down. You have to burn fuel to plant corn every year. Corn requires fossil fuel-based fertilizers, and you only use the corn kernels rather than the whole plant to produce ethanol.
Jim Nokas is one of the lead researchers on the project. He sees the willow shrub as much more commercially viable than corn-based production.
“The best calculations we have for every unit of energy put into this process you get anywhere from 11 to 15 units of energy out. Compared to the best data available for corn, for every unit of energy put in, one would obtain 1.67 units of energy out.”
In other words, producing ethanol from willow is about ten times more efficient than using corn.
Tom Linberg is a commissioner with the New York State Department of Agriculture. Linberg says he’s excited by the prospect of wood-based ethanol production, and sees growing a low maintenance crop like willow as a way for farmers to earn extra cash.
“I think it’s something that could provide an option for a lot of farmers or land owners to use vacant land. Try and get some income off of it whereas they might otherwise not be getting income off the land. It’s a fairly low impact crop. You know, you plant it once and you don’t really need to do anything else with it, and this is something they could have on the side. Brings in some extra income and, again, helps keep that land productive.”
Willow can be harvested 6 to 7 times before replanting is necessary. It has a year long growing and harvesting season, and provides high yields. With about 2 million acres of dormant farmland in New York alone that could be dedicated to willow production, Volk believes growing willow for ethanol would have a positive effect on the local economy that buying foreign oil cannot offer.
“The real benefit here then is we build them here and it’s locally produced material, so you buy it from the land owners, or the farmers that are producing willow, the people that own wood lots. You buy all that material locally from the local community. You produce the ethanol and hopefully then we are using it locally in the community, and instead of sending energy dollars out of the state we cycle them around the local community and get lots of benefits associated with them.”
The researchers say the willow-to-ethanol process will be ready for commercial application within two years, and if it proves commercially viable the timing couldn’t be better. With ethanol plants being built across the nation, the wood method could become an efficient alternative to corn-based production in many states.
DuPont has agreed to take part in a new E-P-A program aimed at eliminating the use of a potentially toxic chemical. The chemical is known as C-8. And it’s used to make Teflon and other nonstick and stain-resistant products. The Great Lakes Radio Consortium’s Fred Kight has the story:
Transcript
DuPont has agreed to take part in a new program aimed at eliminating
the use of a potentially toxic chemical. The chemical is known as C-8,
and it’s used to make Teflon and other nonstick and stain-resistant
products. The voluntary program was proposed by the EPA. The Great
Lakes Radio Consortium’s Fred Kight has the story:
The EPA wants DuPont and seven other chemical companies to
completely eliminate C-8 in the next nine years.
The effort is drawing praise from environmentalists. Timothy Kropp is a
senior scientist with the Environmental Working Group. He says finding
a substitute for C-8 can decrease pollution and damage to human health…
“This chemical is ubiquitous in people’s blood, and it’s persistent and
everywhere throughout the environment. It is such a wide ranging
chemical with so many concerns that it’s high time that someone took
care of this.”
One EPA official says this is a great opportunity for the industry to get
ahead of the curve and demonstrate leadership in protecting the
environment.
We often hear about big corporations adopting better environmental practices to boost their business…and improve their image. Those changes are usually motivated by profits. It’s more unusual to find a business built from the ground up around the ideas of ethics, sustainable development, and environmental stewardship. But the Great Lakes Radio Consortium’s Wendy Nelson found one man who has created a company around these principles….even though it may ultimately hinder the growth of his business:
imothy D. Sands, at left, director of Purdue's Birck Nanotechnology Center in Discovery Park, and graduate student Mark Oliver, operate a "reactor" in work aimed at perfecting solid-state lighting, a technology that could cut electricity consumption by 10 percent if widely adopted. Purdue researchers have overcome a major obstacle in reducing the cost of the lighting technology, called light-emitting diodes. (Photo by David Umberger, courtesy of Purdue News Service)