A Good Guide for Shopping

  • The Good Guide website's turkey rating page. (Image by Jessi Ziegler)

There’s a new way for consumers to find
out more about the products they buy.
Samara Freemark has the story
of a new online guide that lets you look
up how good products are for you and for
the environment:

Transcript

There’s a new way for consumers to find
out more about the products they buy.
Samara Freemark has the story
of a new online guide that lets you look
up how good products are for you and for
the environment:

The website is called the Good Guide, and it lets consumers get a pretty in-depth look at more than 60,000 foods and household products. The site ranks products by their impacts on health, the environment, and society.

The Good Guide is the brainchild of Dara O’Rourke. He’s a professor of environmental policy at the University of California at Berkley. O’Rourke says consumers don’t have easy access to the information they need to make smart buying decisions.

“What we’re trying to do is bring the best available science, put it in an easy accessible and free format, then get it to people whenever and wherever they make a decision about a product or a company.”

That’s where the Good Guide iphone application comes in. Shoppers can scan barcodes at the store to get instant product information.

That application, and the site, can be found at goodguide.com

For The Environment Report, I’m Samara Freemark.

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Bumpy Road Ahead for Hydrogen Cars

  • Sysco - a major food distributor - is part of a year-long government funded project. They're running seventeen of their forklifts using hydrogen powered fuel cells. (Photo by Mark Brush)

Six years ago, President Bush proposed to end our addiction to oil by building a hydrogen
economy. At the time, driving a hydrogen powered car didn’t seem that far off. But today, the
reality of mass produced hydrogen powered cars has hit some bumps in the road. Mark Brush
looks at the challenges ahead:

Transcript

Six years ago, President Bush proposed to end our addiction to oil by building a hydrogen
economy. At the time, driving a hydrogen powered car didn’t seem that far off. But today, the
reality of mass produced hydrogen powered cars has hit some bumps in the road. Mark Brush
looks at the challenges ahead:

It’s all about the fuel cell. The cell converts hydrogen gas into electricity that can power up a
motor. And when that’s done – the only thing that comes out of the tail pipe is crystal, clean
water.

So there’s a lot of enthusiasm to build hydrogen powered cars. If you live in Southern California,
you can drive a hydrogen powered car right now.

(sound of a hydrogen car commercial)

But you can’t buy this car. You can only lease it. And you have to have a pretty good map.
There are only 2 places where you can fill the car up with hydrogen.

And that highlights just one of the challenges facing the hydrogen car right now. There’s no
infrastructure – no network of gas stations – to support it.

Steven Chu heads up the Obama Administration’s Department of Energy.

“It’s an infrastructure that is as extensive as the infrastructure for gasoline and diesel. And that
doesn’t come overnight.”

Chu wants to eliminate all the research money for hydrogen powered cars and trucks. He says
there are too many big problems to solve. There’s the infrastructure problem. Fuel cells are
expensive. The cheapest way to make hydrogen right now releases pollution. And there are
problems with storing the gas.

In an interview with MIT’s Technology Review, Energy Secretary Chu referred to these problems
as the four miracles. And that didn’t go over too well with some people.

“A miracle? Really? How many miracles have you seen? I’m not sure I’ve seen a real miracle in
my life.”

Levi Thompson directs the Hydrogen Energy Technology Laboratory at the University of
Michigan.

He says talking about these problems as miracles sends the wrong message. He admits, there
are some big puzzles to solve. But he’s convinced scientists can solve them.

“If you believe this is the savior, that this is going to transform the way we do things, I think you
have a responsibility to invest – even though that you see that it’s far behind.”

Thompson says the ultimate goal for a hydrogen economy is to get the hydrogen from water
using electricity from renewable resources like wind, solar, and hydro-power. So you get the
clean burning gas you’re looking for.

It can be done today, but it’s expensive. Thompson thinks it’ll get cheaper as alternative sources
of electricity become more widespread.

The Energy Department doesn’t want to give up on hydrogen research altogether. Secretary Chu
says fuel cells do make sense on a small scale – like to power fork lifts in a warehouse.

(sound of a warehouse and forklift)

Here at this Sysco warehouse in Grand Rapids, Michigan, a mini hydrogen experiment is
underway.

Sysco is a major food distributor. This warehouse is part of a year-long government funded
project. They’re running seventeen of their forklifts using hydrogen powered fuel cells made by a
company called Plug Power.

Darin VanDuyn is with Sysco. He says, mostly, they’ve had a good experience with these fuel
cells.

“We’ve had about 80 hours of lost time due to repair – minor failures, things like that – but nothing
major has disrupted their operation.”

VanDuyn says the company hasn’t decided yet whether they’ll move forward with the fuel cell
program. But policy makers say real-world experiments like these move us closer to mass
produced hydrogen vehicles.

Even though the Obama Administration wants to cut funding for hydrogen powered cars and
trucks, Congress holds the purse – and has the final say. So far, it looks like Congress will
continue to fully fund the research.

Automakers say the ups and downs of federal funding don’t affect their plans. Several
companies say they’ll start selling hydrogen powered cars in 6 to 8 years – and they’ll let the
market decide the fate of the hydrogen economy.

For The Environment Report, I’m Mark Brush.

Related Links

Is There Hope for Hydrogen?

  • Plug Power does sell these dishwasher-sized fuel cells for your home, but in places like India (Photo courtesy of Plug Power)

Researchers and start-up companies are looking for new ways to power the country. There’s been a lot of hope for hydrogen. But as Mark Brush reports there have been some bumps for companies on the road to the new hydrogen economy:

Transcript

Researchers and start-up companies are looking for new ways to power the country. There’s been a lot of hope for hydrogen. But as Mark Brush reports there have been some bumps for companies on the road to the new hydrogen economy:

There has been a lot of excitement about hydrogen fuel cells for awhile now.

Ten years ago we talked to a rep at a company called Plug Power. He was excited about selling a dishwasher-sized fuel cells that could power and heat your home.

“The only barrier to fuel cells is that people don’t know about them.”

Turns out, that wasn’t the only barrier.

It’s expensive to make these things, and the units weren’t as efficient at heating as they hoped they would be.

But the company is still around, and they are still hopeful about fuel cells for your home.

Andy Marsh is the president of Plug Power.

“So the industry hasn’t moved ahead as rapidly as we would like. It sometimes takes many more years to makes some progress than you had originally hoped.”

Marsh says his company is selling fuel cells in places like India, but he says fuel cells for our homes in the US are probably still three to five years away.

For The Environment Report, I’m Mark Brush.

Related Links

Funding for Hydrogen Vehicles Hit Hard

  • Mercedez-Benz A-Class F-Cell at the 2009 Washington DC Auto Show (Photo source: IFCAR at Wikimedia Commons)

The Department of Energy wants to cut funding for the development of hydrogen powered vehicles. Mark Brush reports the Energy Secretary has decided that cars powered by hydrogen are too far off:

Transcript

The Department of Energy wants to cut funding for the development of hydrogen powered vehicles. Mark Brush reports the Energy Secretary has decided that cars powered by hydrogen are too far off:

Six years ago, President George W. Bush proposed spending 1.2 billion dollars to develop hydrogen power cars.

Now, Stephen Chu, President Obama’s Energy Secretary, says hydrogen powered cars aren’t yet practical for today’s market.

Chu says they’d rather spend money on things like plug-in cars and cars powered by biofuels. Things that can hit the road now instead of 20 years from now.

People working on hydrogen powered vehicles aren’t too happy about the cuts.

Patrick Serfass is with the National Hydrogen Association.

“I’d say the hydrogen industry is perplexed. The administration has a lot of smart people in it and they have done a lot of great things for many parts of the renewable energy sector. But the proposal to eliminate the hydrogen vehicle program is a mistake.”

Serfass says hydrogen powered cars are not as far off as the Energy Secretary might think. He and his group are trying to persuade members of Congress to put research money back into the budget.

For The Environment Report, I’m Mark Brush.

Related Links

Getting Solar From Your Windows

  • Marc Baldo, associate professor of electrical engineering and computer science (left) and Shalom Goffri, postdoc in MIT's Research Laboratory of Electronics (right) hold examples of organic solar concentrators. (Photo by Donna Coveney at MIT, courtesy of NSF)

Some researchers say they’ve found a way to make every window

in a building gather solar energy. Lester Graham reports:

Transcript

Some researchers say they’ve found a way to make every window

in a building gather solar energy. Lester Graham reports:

MIT engineers say they can coat plastic or glass to redirect sunlight to the edges of a
window – to solar cells.

Instead of using a whole panel of expensive solar cells, the cells could just be aligned
just along the edges. The system could be used for solar panels, or could be used as
windows on tall glass paneled buildings.

Marc Baldo is the team leader at MIT.

“We think that this is a very practical and simple technology. It just relies on simple
coating processes. We have to develop techniques to, you know, manufacture and
integrate solar cells on the edges. But we’re optimistic that this might be useful within,
sort of, two to three year time frame.”

The researchers outlined their findings in the journal, Science. They say the focused
light at the edges really increases the electrical power obtained from each solar cell.

For The Environment Report, I’m Lester Graham.

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Recycling Goes Postal

  • The US Postal Service is beginning an e-waste recycling program through the mail (Photo courtesy of the USPS)

Many of us just don’t know what to do
with that old cell phone or outdated digital
camera. While some companies take the devices
back, not all do. Now, the US Postal Service
says it’s coming to the rescue. Mark Brush
reports – the post office is developing a free
electronics recycling program:

Transcript

Many of us just don’t know what to do
with that old cell phone or outdated digital
camera. While some companies take the devices
back, not all do. Now, the US Postal Service
says it’s coming to the rescue. Mark Brush
reports – the post office is developing a free
electronics recycling program:

Throwing out an old electronic device is wrong for several reasons. The devices can
contain toxic heavy metals which can pollute the environment. And there are many parts
that can be reused.

The US Postal Service is piloting a recycling program in some big cities across the
country – including Los Angeles, Chicago, and Washington D.C.

They’re giving people
free, postage-paid envelopes. You can stuff your old cell phone or mp3 player into the
envelope and drop it in the mail.

It’s delivered to a recycling company called Clover Technologies Group. The company
says it tries to refurbish and resell what it can. If the device can’t be resold, it’s broken
down, and the materials that can be are recycled. The other stuff is thrown in a landfill.

Critics say while these recycling programs are a good first step, the companies who
make these devices should design them so all the parts can be reused.

For The Environment Report, I’m Mark Brush.

Related Links

Antibacterial vs. Plain Soap: A Wash

  • A new review paper in the journal Clinical Infectious Diseases finds that antibacterial soap is no better than plain soap at keeping you from getting sick. Some national studies have found that about 70% of liquid soaps on store shelves contain antibacterial ingredients. (Photo by Rebecca Williams)

Antibacterial soaps are marketed as an extra
defense against that awful bug going around the
office or your kid’s school. But as Rebecca Williams
reports, new research finds antibacterial soap is not
any better than plain soap at keeping us from getting
sick. And some scientists and doctors worry there might
be risks to widespread use of antibacterial products:

Transcript

Antibacterial soaps are marketed as an extra
defense against that awful bug going around the
office or your kid’s school. But as Rebecca Williams
reports, new research finds antibacterial soap is not
any better than plain soap at keeping us from getting
sick. And some scientists and doctors worry there might
be risks to widespread use of antibacterial products:


Child: “Make the frosting for the carrot cake?”


“You want to make the frosting for the carrot cake? Okay, Jasmine,
bring up your chair so you can wash your hands.”


(Sound of Jasmine pulling a chair over & washing up)


Margo Lowenstein says she’s just a little extra careful about germs.
She never borrows somebody else’s ink pen during flu season. She opens
public bathroom doors with a paper towel on her way out. But her
friends call her a germ-phobe.


“You know, you go to a birthday party and some kid blows out a cake, and
you just see the spit flying on the top of the cake, that just kinda
grosses me out. So I usually take the cake but I won’t eat that top
layer of frosting. (laughs)”


Lowenstein is a soap marketer’s dream customer. Market researchers say
Americans have been getting more worried about germs. And as a result
we’ve been buying more soap and hand sanitizer and antibacterial
products.


Antibacterial soaps have been around since the late 1940s. But the
market research firm Euromonitor International says in recent years,
germ-phobia has given manufacturers a reason to ramp up the
antibacterial products in their lines.


There are some studies that estimate that about 70% of liquid soaps on
store shelves have antibacterial ingredients in them. Ingredients such
as a chemical called triclosan.


Allison Aiello teaches epidemiology at the University of Michigan
School of Public Health. Aiello is lead author of a paper in the
journal Clinical Infectious Diseases. She examined more than two dozen
studies on antibacterial soaps containing triclosan. She says
triclosan kills bacteria by going after the bacterium’s cell wall:


“The cell wall cannot be kept intact anymore; it’s not able to
survive.”


But Aiello says there’s a growing body of evidence that even though
antibacterial soap kills bacteria, it’s no better than regular soap
at preventing illness. Regular soap doesn’t kill bacteria, but Aiello
says it works just as well at getting that harmful bacteria off your
hands.


“Regular soap, is basically, it has a surfactant in it and what it does is it allows
bacteria to be dislodged from hands and then the motion that you’re using
under water helps dislodge it and make it go down the drain,
basically.”


Aiello says it’s important to note that the soap studies were done with
basically healthy people. She says more research needs to be done to
find out if antibacterial soaps could be more effective for elderly
people or people with compromised immune systems.


But Aiello says generally, for healthy people, antibacterial soaps are
no better than plain soaps at keeping you healthy.


And she says there could be risks to antibacterial products. She says
there’s evidence from lab studies that antibacterial soaps might be
adding to the emergence of super-bugs: bacteria that are resistant to
antibiotics.


“In the laboratory setting, it is clear that there are mechanisms that
can lead to antibiotic resistance when bacteria are exposed to
triclosan.”


Aiello says they haven’t seen this play out for antibacterial soaps in
the real world yet. But she says researchers need to keep an eye on it
because antibiotic resistance might take some time to develop.


The soap industry dismisses the idea that antibacterial soaps might
have something to do with antibiotic resistance.


Brian Sansoni is with the Soap and Detergent Association.


“The last thing we want to see is people discouraged from using
beneficial products. Antibacterial soaps have proven benefits, they’re
used safely and effectively by millions of people every day. Consumers
should continue to use these products with confidence.”


The Food and Drug Administration has the final word on antibacterial
soaps. But they’re still trying to figure out what to say about them.

The FDA has been trying to come up with rules for the products for more
than 30 years. Right now there are no formal rules about the levels of
antibacterial chemicals in soaps. And there aren’t any rules about how
the products can be marketed or labeled.


There’s one thing both the soap industry and doctors agree on –
Americans don’t lather up often enough with any kind of soap. A new
study found one out of every three men walk out of the bathroom without
washing their hands. Women did better than the guys, but still, about
one of every ten women didn’t wash their hands either.


Experts say the best way to avoid getting sick is to wash your hands with soap and water for 20 seconds. That’s as long as it takes to sing the happy birthday song twice.


For The Environment Report, I’m Rebecca Williams.

Related Links

Searching for New Bio-Diesel Source

The U.S. is looking for ways to depend less on foreign oil and reduce greenhouse
gas emissions. A popular method is so-called bio-fuels. Those are fuels, such as
ethanol or bio-diesel, made from plants. Cleaner burning bio-diesel has been billed
as an environmentally-friendly replacement for our 60 billion gallon a year thirst for
diesel oil. But there aren’t enough crops or land to produce enough bio-diesel to
replace fossil fuel-based diesel. Amy Quinton reports new research is looking at
another way to make bio-diesel: using algae:

Transcript

The U.S. is looking for ways to depend less on foreign oil and reduce greenhouse
gas emissions. A popular method is so-called bio-fuels. Those are fuels, such as
ethanol or bio-diesel, made from plants. Cleaner burning bio-diesel has been billed
as an environmentally-friendly replacement for our 60 billion gallon a year thirst for
diesel oil. But there aren’t enough crops or land to produce enough bio-diesel to
replace fossil fuel-based diesel. Amy Quinton reports new research is looking at
another way to make bio-diesel: using algae:


Bio-diesel is made primarily from plant oils: soybean, canola, rapeseed. Ihab Farag
is a chemical engineering professor at the University of New Hampshire. He climbs
up scaffolding to demonstrate a processor that turns waste oil from the University’s
cafeteria into bio-diesel. Farag says this is more environmentally-friendly than diesel:


“It’s coming from vegetable oil, so therefore it’s cleaner… it doesn’t have the sulfur in it so you
don’t get acid rain issue that you get from diesel, it doesn’t do particulates which are suspect[ed] to be cancer-
causing.”


Almost any diesel engine built in the last 15 years can use bio-diesel, but Farag says
there’s a major drawback: it takes an acre of most crops to produce only 100 gallons
of bio-diesel per year:


“I think it has been estimated that if we are using just something like soybean[s] and want to
produce bio-diesel for the whole country, we need almost an area of land that’s about
two and a half to three times the area of Texas.”


That would be an environmental nightmare because bio-fuels require a lot of fossil
fuels to plant, harvest and process them. They only produce a bit more energy than
the energy needed to make them. It also would put the nation’s fuel needs in conflict
with its food needs. That could drive the price of both sky-high.


So Farag and Master Chemical Engineering student Justin Ferrentino are looking at
another plant. One that’s capable of producing much more oil : algae.
Inside the University’s bio-diesel lab, Ferrentino holds up a glass jar filled with a sea-
green powder:


“This is freeze-dried cells that we’ve grown up in our photo-bioreactor.”


He’s testing different ways of extracting oil from these single-celled algae plants to
produce the most bio-diesel:


“People have projected with micro-algae you can grow somewhere between five and 15,000
gallons per acre per year, so it’s a big difference.”


Compared to 100 gallons per acre of soybeans, it’s a very big difference. Ferrentino
has built a contraption of two small fiberglass tanks, surrounded by florescent lights
and reflectors. It’s called a photo-bioreactor. With the right amount of light, the algae
here grows rapidly:


“When I fill these with growth medium and then add the cells to them and they just
multiply, they divide… they double every ten to 15 hours, when they’re growing
exponentially.”


The more cells, the more oil, and the more bio-diesel. Ferrentino’s photo-bioreactor
is small, producing only a tenth of a gram of bio-diesel. But build one on a larger
scale where there’s lots of sunlight, like the desert Southwest, and it could potentially
produce thousands of gallons on just an acre of land.


And Farag says because carbon is needed to fertilize algae growth, the potential
exists to remove greenhouse gases while simultaneously producing bio-diesel:


“If we can connect it with a wastewater treatment plant, where they have a lot of
waste coming in with lots of carbon in it then you can consume the carbon to grow
the algae and at the same time clean up the wastewater.”


But skeptics say one of the biggest challenges is making algae production
economical. Commercial production would initially yield fuel that could cost between
20 and 50 dollars a gallon. Ferrentino recognizes the drawbacks, but says their
research is worth pursuing:


“I think that our energy needs are not necessarily going to be solved with a magic
bullet, but I think this is certainly one part of it, being that you don’t need arable land
you have the added benefit of maybe being able to use the carbon from flue gases
from power plants, maybe being able to treat wastewater. So, it has some significant
added benefits so it could be one piece of the energy picture.”


But growing algae in the desert or anywhere else doesn’t have the kind of political
appeal that subsidizing farmers to grow soybeans for soy-diesel does. So finding
funding for a commercial-sized algae bio-reactor will face significant obstacles.


For the Environment Report, I’m Amy Quinton.

Related Links

Nanotech Nervousness

  • Researchers are studying whether nano-sized material could purge bacteria from the digestive tracts of poultry. The bacteria doesn't harm chickens and turkeys, but it can make people sick. The hope is that using nanoparticles could reduce the use of antibiotics in poultry. (Photo courtesy of USDA)

Nanotechnology is the science of the very, very small. Scientists are
finding ways to shrink materials down to the scale of atoms. These
tiny particles show a lot of promise for better medicines, faster
computers and safer food. But Rebecca Williams reports some people are
worried about harmful effects nano-size particles might have on
people’s health and the environment:

Transcript

Nanotechnology is the science of the very, very small. Scientists are
finding ways to shrink materials down to the scale of atoms. These
tiny particles show a lot of promise for better medicines, faster
computers and safer food. But Rebecca Williams reports some people are
worried about harmful effects nano-size particles might have on
people’s health and the environment:


Life on the nano scale is so tiny it’s hard to imagine. It’s as small
as 1/100,000 of a human hair. It’s as tiny as the width of a strand of
DNA. A nanoparticle can be so small it can actually enter cells.


Nanoparticles are loved by scientists and entrepreneurs for the novel
things they can do at those tiny sizes. They act differently. They
can go where larger particles can’t.


Many companies already sell new products with nano properties. The
Project on Emerging Nanotechnologies says there are almost 500 products
on the market that use nanotechnology.


Some of those products are starting to show up in the grocery store.


Jennifer Kuzma is with the Center for Science, Technology and Public
Policy at the University of Minnesota. She tracks nanotech
developments in food and agriculture. She says there are some edible
nano products on store shelves right now:


“One is a chocolate shake that is a nano emulsion of cocoa molecules so
you can deliver more flavor for less of the cocoa product.”


Kuzma says that’s just the beginning. She says hundreds more nano
products, including a lot of food products, are on their way to market.
In many cases, scientists are looking for solutions to food safety
problems.


For example, bacteria in the intestines of chickens and turkeys can
make people sick when poultry is undercooked. Right now farmers treat
their birds with antibiotics. But as bacteria are becoming resistant
to antibiotics, scientists are looking for other methods to fight the
bacteria.


Jeremy Tzeng is a research scientist at Clemson University. He’s part
of a team developing what he calls intelligent chicken feed.
Basically, chickens would be fed a nanomaterial that attaches to
molecules on the surface of the harmful bacteria. Then the bacteria
could be purged from the chicken along with fecal matter:


“If we use this physical purging, physical removal, we are not using
antibiotics so the chance of the microorganism becoming resistant to it
is really small.”


Tzeng says his research is still in its early stages. He says there
are a lot of safety tests he needs to run. They need to find out if
the nanomaterial is safe for chickens, and people who eat the chickens.
And they need to find out what happens if the nanomaterial is released
into wastewater.


“As a scientist I love to see my technology being used broadly and very
quickly being adopted. But I’m also concerned we must be cautious. I
don’t want to create a miracle drug and then later it becomes a problem
for the long term.”


There are big, open questions about just how safe nanoparticles are.


Researcher Jennifer Kuzma says there have been only a handful of known
toxicology studies done so far. She says nanoparticles might be more
reactive in the human body than larger particles:


“There’s several groups looking at the ability of nanoparticles to
damage, let’s say your lung tissue. Some of the manufactured or manmade nanoparticles are thought to have greater abilities to get into the
lungs, penetrate deeper and perhaps damage the cells in the lungs, in
the lung tissue.”


In some cases, it’s hard for the government to get information about new
nano products. Kuzma says companies tend to keep their own safety data
under lock and key:


“Some companies might send you the safety studies if you ask for them. Others may not
because they of course have interests in patenting the technology and
confidential business information.”


So the government doesn’t always know all that much about what’s
heading to market. Agencies are trying to figure out how – and even
whether – to regulate products of nanotechnology. Right now, there are
no special labeling requirements for nano products.


In the meantime, nanotechnology is turning into big business. Several
analysts predict that just three years from now, the nanotech food
market will be a 20 billion dollar industry.


For the Environment Report, I’m Rebecca Williams.

Related Links

Fcc to Reduce Bird Kills?

Scientists have found that millions of birds are killed each year when they crash into communication towers. Now officials at the Federal Communications Commission are thinking about making companies change the way they build the towers. Mark Brush has more:

Transcript

Scientists have found that millions of birds are killed each year when they crash into communication towers. Now officials at the Federal Communications Commission are thinking about making companies change the way they build the towers. Mark Brush has more:


The explosion of cell phones has meant an explosion of new communication towers, but when these towers are built using guy wires, and use traditional lighting systems, they can end up really hurting bird populations.


Steve Holmer is with the American Bird Conservancy. He says the steady red lights on these towers can confuse birds that use stars to migrate at night.


“The birds are actually attracted to these towers, kind of like a moth to the flame, and will actually circle around them and strike the towers, or strike the guide wires, or actually just keep circling until they exhaust themselves.”


Holmer says that simply replacing these lights with white strobe lights would help a lot.


The FCC will be seeking public comments on whether or not they should require that new communication towers be bird friendly.


For the Environment Report, I’m Mark Brush.

Related Links