An endangered holiday darter. Darters are among the most threatened Southeastern fish; they have been likened to aquatic canaries. (Photo by Noel Burkhead, courtesy of USGS)
A new study shows things are getting
worse for fish in North America. Lester
Graham reports water pollution is the problem:
Transcript
A new study shows things are getting
worse for fish in North America. Lester
Graham reports water pollution is the problem:
The U.S. Geological Survey finds nearly twice as many kinds of fish are now listed
as imperiled today than just 20 years ago. 61 types of fish have gone extinct.
Howard Jelks is the lead author of the study.
He says the decline in fish is because most streams, rivers, and lakes are in worse
shape because of sprawling development, farmers’ chemicals, and pollution washed
off parking lots and streets.
Even if you don’t go fishing, or really even care about the fish, Jelks says there’s a
reason you should care.
“You know, at a certain point, it’s a quality of life issue. If it’s not good enough for
some of these fish, it’s probably not good enough for your kids to swim in.”
And the experts say that means we all have to think about what’s going down the
drain and what chemicals we’re putting on lawns, and on farms.
Jim Gilligan, president of Snedicor’s Cleaners, made the big switch to liquid silicone (Photo by Kyle Norris)
There’s a push in the dry cleaning
industry to become more environmentally
friendly. But this change can be a big risk
for business owners. Kyle Norris talks to
one dry cleaner who has made the change.
And he says he’s not looked back yet:
Transcript
There’s a push in the dry cleaning
industry to become more environmentally
friendly. But this change can be a big risk
for business owners. Kyle Norris talks to
one dry cleaner who has made the change.
And he says he’s not looked back yet:
Jim Gilligan is president of Snedicor’s Cleaners.
And for years, his business has used a chemical called perchloroethylene to
clean clothes. Actually, let’s just call it ‘perc’ which is what everyone calls
it. But Gilligan says he did not like perc, for lots of reasons. For one thing,
he had to store the chemical in these big tanks.
“It was hard to deal with, it was heavily regulated, there was potential for
spills and other types of disasters.”
Perc is a toxic air contaminant. There’s evidence it can cause cancer, as well
as liver and kidney damage. Contact with perc can cause lots of problems
like nausea, dizziness, skin irritation, loss of consciousness, and even death.
If perc leaks into the soil or ground water it can be a disaster. Partly because
perc is hard to extract from water.
Perc was the industry standard for years. And today about 70% of American
dry cleaners still use it. But there’s a growing movement to stop using it and
embrace greener techniques.
Gilligan had heard about some of these newer, eco-crunchier techniques. But
he’d also heard that they did not work as well as perc.
Then he visited another dry cleaning plant. Its owner had switched from
using perc to using liquid silicone. Which is basically liquefied sand.
“That gave me a confidence, right. That was, because we’d been hearing
from the industry as whole that it didn’t clean as well. And of course it’s
great moving into a green technology but if your customers wind up
dissatisfied and you go out of business, that would sort of defeat the
purpose.”
Gilligan says he was impressed with how well liquid silicone cleaned
garments. So he made the big switch. He got rid of his perc machines. And
he bought a new machine that used liquid silicone. To the tune of $80,000
bucks.
And as he gathered his employees to show them the new machine, he did
something kind of kooky.
“I actually took a little cup and I drank it.”
The liquid silicone. The stuff that cleans the clothes. Dude drank it! Says it
tasted like salty vegetable oil.
“Everyone was shocked to see that, but I just wanted to show them that how
confident I was that this was a safe technology.”
And since that shot of liquid silicone, Gilligan hasn’t had any issues. His
customers tell him they’re happy with the results. And financially he’s done
really well this year.
But not all dry cleaners are ready or willing to take this kind of risk. Dry
cleaning is a tough business to make a profit in. So plenty of cleaners want
to stick with what they know works—which for a lot of them, is using perc.
In fact, there’s a tension in the industry these days. Between the old
schoolers—cleaners who use perc. And the new schoolers—people trying
out newer, greener methods.
Chris Allsbrooks is with the Drycleaning and Laundry Institute.
“And right now our mix is changing because there’s
more people coming into the industry as some of the people with the older
views are leaving the industry.”
And the laws are changing, too. California has said that perc can no longer
be used by that state’s dry cleaners by the year 2023. And New Jersey is
considering following in California’s footsteps.
For Jim Gilligan, the switch was the just right thing to do: as a business
owner and as someone who cares about the environment. He says now, he
breathes easier. And so do his employees. And his customers say a green dry
cleaner works for them.
The 'Secrets of Soil' exhibit at the Smithsonian (Photo credit: Smithsonian Institution, John Steiner and Joseph Talman)
The 'Secrets of Soil' exhibit at the Smithsonian (Photo credit: Smithsonian Institution, John Steiner and Joseph Talman)
The 'Secrets of Soil' exhibit at the Smithsonian (Photo credit: Smithsonian Institution, John Steiner and Joseph Talman)
Soil gets treated like dirt sometimes.
But soil is being displayed as a valuable
resource at the Smithsonian in Washington D.C.
Chuck Quirmbach reports:
Transcript
Soil gets treated like dirt sometimes.
But soil is being displayed as a valuable
resource at the Smithsonian in Washington D.C.
Chuck Quirmbach reports:
The Secrets of Soil exhibition includes samples from every US state and territory. It highlights
threats to soil.
The Soil Science Society of America is a main sponsor. Ellen Bergfeld is the CEO of the
Society.
She says major floods this year show erosion is still a big problem. Bergfeld also says some
farmers are plowing under land that was once put aside for conservation. Higher crop prices
have lowered enrollment in a government program called Conservation Reserve.
“And a lot of the contracts are coming up over the next few years so we’re going to see just a
tremendous number of acres coming out. And that does not bode well for the use of those soils.”
The soil exhibit will be at the Smithsonian’s National Museum of Natural History for about two
years, then travel around the US.
Many new shower curtains contain PVC (Source: DO'Neil at Wikimedia Commons)
A new study looked at off-the-shelf
shower curtains and came up with some disturbing
findings. The Center for Health, Environment
and Justice studied polyvinyl chloride plastic
shower curtains and found that PVC shower
curtains can release as many as 108 toxic
chemicals. Lester Graham talked with Sarah
Burkhalter with the environmental journalism
site: grist.org. He asked just how
much of a concern these PVC shower curtains
are:
Transcript
A new study looked at off-the-shelf
shower curtains and came up with some disturbing
findings. The Center for Health, Environment
and Justice studied polyvinyl chloride plastic
shower curtains and found that PVC shower
curtains can release as many as 108 toxic
chemicals. Lester Graham talked with Sarah
Burkhalter with the environmental journalism
site: grist.org. He asked just how
much of a concern these PVC shower curtains
are:
Sarah Burkhalter: “It depends. This group – The Center for Health, Environment, and Justice –
tested five shower curtains, and their claim is that new-shower-curtain-smell is up to 108 nasty
chemicals that have been added during processing. At the same time, you know, there are
chemicals in everything. So, to an extent, you just have to choose your battles. Shower curtains
have become the emergency-du-jour, if you will. But, there is plenty else to worry about if you
already have a shower curtain. It’s not an emergency.”
Lester Graham: “Now we should point out that these shower curtains are not special shower
curtains. These were bought at Bed Bath and Beyond, and Kmart, and Sears, and Target, and
Wal-Mart. And I don’t even know what I would replace my shower curtain with. Got any ideas
about that?”
Burkhalter: “Sure. Well, the thing about these shower curtains, you know, it’s not even the shower
curtains themselves. It is the plastic they’re made of. And that is plastic #3. Its poly-vinyl chloride,
or PVC, or you may sometimes you may just see it as vinyl. And at grist.org, our advice columnist
always says, ‘no vinyl, that’s final’. That’s her tagline. She says, ‘no PVC for me’. That’s her other
way to remember it. Really, as much as you can avoid this plastic #3. Which, is difficult to avoid.
It’s in toys, and hospital tubing, and jars, and pill bottles. But as much as you can avoid this, is for
the benefit, certainly. As far as shower curtains go, there are a lot of alternatives. You can always
go for a door instead of a curtain. When our advice columnist, Umbra, wrote about this very issue
in 2006, she recommended polyester shower curtains. They also make organic cotton, and nylon.
There’s a different plastic, its PVC-free, its called ethylene vinyl-acetate, or EVA, so if you look for
EVA plastic shower curtains, those are a good alternative. Or, you could always take up
exhibitionism.”
Graham: (laughs) “Well, how hard are these things to find – these other, non-PVC shower
curtains?”
Burkhalter: “They’re going to get easier and easier to find as time goes by. Actually, IKEA phased
out PVC shower curtains over a decade ago. Sears, Kmart, Wal-Mart, and Target are all in the
midst of phasing out PVC. And, actually, Target had a goal for this spring, I think they said 88% of
their shower curtains now don’t contain PVC. So, if you look at the labels, and try to avoid things
that say PVC, you should be able to find alternatives, even in these big box stores.”
Graham: “So, what do you have hanging in your shower?”
Burkhalter: “Well, I have to say that I took a shower this morning, and it is a plastic shower curtain.
But, you know, I’ve had it for a couple of years, and the Center for Health, Environment, and
Justice, when they tested, they found that some of these chemicals hung-out for a few weeks, but
after a month or so, your shower curtain has probably done off-gassing all the chemicals that it’s
going to. So, if you’ve had your shower curtain for a couple of years, you know, really, instead of
trashing it, it’s probably best just to hold on to it. Don’t’ burn it – that is something that you really
don’t want to do with PVC. That’s kind of one of its great dangers, is that it releases dioxin, a nasty
chemical, when it’s burned. So, but as long as you’re not licking it regularly, you can probably hold
on to your old one.”
USGS Wildlife Veterinarian testing an American crow for previous exposure to the West Nile Virus (Photo courtesy of US Geological Survey)
We’re heading into West Nile virus season.
Rebecca Williams reports experts say it’s now a
seasonal epidemic:
Transcript
We’re heading into West Nile virus season.
Rebecca Williams reports experts say it’s now a
seasonal epidemic:
West Nile virus is at its peak between mid-July and mid-September.
You can get infected from a single mosquito bite.
Most people who get infected won’t get a serious case of it. But people
over 50 have a higher risk of getting really sick. The virus can cause
high fever, paralysis and even death.
Dr. Lyle Petersen is with the Centers for Disease Control. He says West
Nile Virus is here to stay. And he says even if your area hasn’t had an
outbreak recently, that doesn’t mean it won’t happen.
“We really can’t predict exactly when and where these outbreaks are
going to occur so everybody needs to take precautions.”
He says you should use insect repellants, repair window screens, and
drain standing water around your house.
There's a movement to stop using pesticides and sprays on your lawn (Photo by Ilja Wanka)
A lot of us have a love-hate relationship
with our lawns. We love them when they’re lush.
We hate them when they’re full of dandelions and
dead patches. It’s easy to have someone come out
and spray pesticides to take care of weeds and bugs.
But some people say it’s not necessary and could
do more harm than good. Rebecca Williams reports:
Transcript
A lot of us have a love-hate relationship
with our lawns. We love them when they’re lush.
We hate them when they’re full of dandelions and
dead patches. It’s easy to have someone come out
and spray pesticides to take care of weeds and bugs.
But some people say it’s not necessary and could
do more harm than good. Rebecca Williams reports:
So, you might be using pesticides on your lawn right now. And of
course, the pesticide industry says that’s okay.
The industry says the chemicals are safe to use on the lawn if you use
them correctly.
Alan James is president of Responsible Industry for a Sound
Environment, or RISE. It’s a trade group for pesticide companies.
“If individuals or professional applicators read the labels and follow
labels, the likelihood of misuse of pesticides is virtually zero because the
labels provide all the information a consumer or professional needs to
apply products both efficiently and safely.”
But the problem is, not everybody reads the label.
Alan James says if you’re hiring someone to spray your lawn you should
make sure they’re certified and insured. You should also take your kids’
and pet’s toys off the lawn before they spray.
But a lot of people say there’s no point in using chemicals just to make
your lawn look good.
Jay Feldman is with the group Beyond Pesticides. He says of the 30
most common lawn pesticides, most of them are suspected by the
Environmental Protection Agency to cause cancer, birth defects or other health problems.
“There’s a range of adverse effects that are indicated as a part of the
pesticide registration program at EPA. EPA knows this information.
Why not remove pesticides from the equation, especially in light of the
fact that they’re not really necessary?”
There’s a movement to stop using pesticides in North America. Both
Ontario and Quebec have banned the sale and cosmetic use of
pesticides. And Home Depot in Canada recently said it will stop selling
traditional pesticides all together by the end of the year.
So if you’re not going to use pesticides, what do you do?
That’s a question Kevin Frank gets a lot. He’s an extension agent at
Michigan State University and an expert on lawns.
“I love to mow my lawn on the weekends because nobody can call me on
the phone or email me with questions.”
He’s been showing me green, healthy test plots of grass and some that
look sad and neglected. The scientists here have been working to find
ways to have good-looking lawns without a lot of chemicals.
Back in his office, Kevin Frank says he tells people they shouldn’t be
afraid to experiment.
“Do you have it in you to let it go for one season and see what happens?
And it could be ugly, so you’ve got to be prepared for that!”
He says a healthy, dense lawn is actually really good at fighting off
weeds and pests all on its own. So, how do you get a healthy, dense lawn
without a lot of chemicals? Frank says it might take a couple years to get
there. And it means going against conventional lawn advice.
“We’ve done a great deal of research here at Michigan State that runs
contrary to what I call ‘turf dogma’. You know: water deeply and
infrequently – and we’ve shown if you do it on a more frequent basis you
end up with a healthier plan overall.”
He recommends watering lightly – just 10 minutes – every day instead
of soaking the lawn once a week. Frank says it’s also good to fertilize
twice a year, use a mulch mower, and mow high instead of giving the
grass a buzz cut.
He says that could make your lawn so healthy, it might mean you won’t
need to spray or hire someone to spray your lawn.
He says the biggest adjustment in reducing pesticide use is managing
your expectations, and deciding how many weeds and bugs you can live
with.
"Mysteries of the Great Lakes" is an IMAX film highlighting the threats to Great Lakes wildlife (Photo by Lester Graham)
There’s a new IMAX film about the threats to wildlife around the Great Lakes. Chuck Quirmbach has more:
Transcript
There’s a new IMAX film about the threats to wildlife around the Great Lakes. Chuck Quirmbach has more:
The film “Mysteries of the Great Lakes” highlights some less commonly known stories, like that of the massive fish known as the lake sturgeon. Biologists are trying to bring the threatened fish back to healthy numbers.
Ron Bruch is a key figure in the new movie. Here, he discusses a 120 year old female sturgeon he’s seen numerous times on spawning runs.
“I’ve gone through this ritual eight times with this fish, and each time I wonder if it’ll be the last. But she’s a survivor and maybe 50 years from now, she’ll come up this river looking for me, and I’ll be gone.”
The film also looks at possible health risks to bald eagles, and what invasive species are doing to native wildlife.
“Mysteries of the Great Lakes” has started its run in several U.S. and Canadian cities.
George Washington's dentures (Photo courtesy of the National Institute of Dental and Craniofacial Research)
Some consumer advocate groups say there’s
another reason to fear a trip to the dentist. They
say dentists should stop using mercury to make some
types of metal fillings. Mark Brush reports the
groups recently settled a lawsuit with the Food and
Drug Administration:
Transcript
Some consumer advocate groups say there’s
another reason to fear a trip to the dentist. They
say dentists should stop using mercury to make some
types of metal fillings. Mark Brush reports the
groups recently settled a lawsuit with the Food and
Drug Administration:
Moms Against Mercury and several other groups sued the FDA. They said the agency
was failing to inform the public about the dangers of mercury in dental fillings.
Mercury can do damage to the nervous system. But people’s exposure from fillings has
long been debated.
Charlie Brown is a lawyer for the groups who sued the FDA. He says getting mercury
out of dental offices will protect those most at risk.
“It’s permanent damage to the developing brain. Not like a guy like me losing brain cells
everyday, but to the child whose potential is being destroyed by neuro-toxic damage.”
As a result of the lawsuit, the FDA changed its message about mercury exposure from
dental fillings. They now say the exposure might hurt the nervous systems in developing
children and fetuses.
The agency plans take a closer look at the science and issue a final rule next year.
The polar bear is now listed as a threatened species (Photo courtesy of the US Fish and Wildlife Service)
The federal government has announced that
it’s listing the polar bear as a threatened species.
Biologists say the rapid loss of sea ice from
the warming climate is putting the bears at risk.
Mark Brush reports the government is now facing
legal action from some conservative groups:
Transcript
The federal government has announced that
it’s listing the polar bear as a threatened species.
Biologists say the rapid loss of sea ice from
the warming climate is putting the bears at risk.
Mark Brush reports the government is now facing
legal action from some conservative groups:
In the announcement Secretary of the Interior Dick Kempthorne tried to make it clear –
the listing doesn’t mean the government is regulating greenhouse gases. He says the
listing can’t be used to stop oil and gas drilling or to go after industries for releasing
carbon dioxide.
Reed Hopper is the principal attorney for the Pacific Legal Foundation – a conservative
public interest group. He says he still expects lawsuits from environmentalists. And that
the Secretary can’t control how the courts will interpret the new listing.
“If the activists are able to use this as they intend, to challenge industrial activity in the
United States, the ultimate effect on the average person is going to be an increase in
energy costs, transportation, fuel, food and housing.”
Hopper says his group is planning to go forward with a lawsuit of their own – opposing the listing.
A Dow Chemical sign on the Tittabawassee River stating 'Enter At Your Own Risk' (Photo by Vincent Duffy)
A sign on the Tittabawassee River, downriver from Dow Chemical Plant, stating to avoid contact with the soil and not eat the fish due to dioxin contamination (Photo by Vincent Duffy)
It’s been more than 50 years since Dow
Chemical Company stopped dumping dioxin into the
river flowing past its plant in Michigan. But the
company and government regulators are still arguing
over how to clean it up. Vincent Duffy reports:
Transcript
It’s been more than 50 years since Dow
Chemical Company stopped dumping dioxin into the
river flowing past its plant in Michigan. But the
company and government regulators are still arguing
over how to clean it up. Vincent Duffy reports:
(sound of backyard)
Kathy Henry’s backyard runs down to the bank of the Tittabawassee River.
It’s a beautiful view, but that’s not what Kathy Henry sees.
“When I look back there now, I see dioxin.”
You can’t really see the dioxin, but it is there. Dow Chemical started
dumping dioxin into the Tittabawasee river in the 1890s. Dioxin is believed
to cause cancer and damage reproductive systems. And, there are high
concentrations of dioxin not only in the Tittabawasee, but in all the water
and floodplains between the chemical plant and Lake Huron 50 miles
downstream.
Kathy Henry first found out about the dioxin seven years ago when a
whistleblower at the Michigan Department of Environmental Quality
warned local environmentalists about the contamination. She has wanted to
sell her house ever since.
“We’ve lived here for 24 years. We loved living in here. Now I’m afraid to
go out in my own yard. I just, psychologically, couldn’t stand living here
anymore. I had to get out.”
Dow says it will clean up any dioxin that’s proven to be dangerous to human
health, but the company has spent decades fighting with Michigan and the
US Environmental Protection Agency over how much of it is a threat.
Dow spokesman John Musser says there’s no proof anyone has gotten sick
because of the dioxin.
“We’re not seeing any impacts. We’re not seeing any cause for alarm. We’re
not seeing any imminent health threat. If it’s not a problem for humans or
the environment, then maybe the best thing to do is to leave it alone.”
But Michigan environmental officials are not so laissez-faire about the
contamination. They continue to warn residents about eating fish from the
rivers, about eating wild game killed in the region, and about swimming at
some beaches.
Robert McCann is with the state of Michigan. He says science is way past
the point of debating whether dioxin is dangerous.
“Study after study has shown that there are some very serious potential health
effects from being exposed to it, even at some lower levels over a long
period of time and those health effects do include things like cancer and
diabetes as well as some more minor health effects that can be caused from it.”
But Dow does debate whether dioxin is dangerous. John Musser says
Michigan and the EPA are using bad science based on dioxin exposure to lab
animals. He says Dow has human data from employees that show dioxin is
not as dangerous as people think.
“They were exposed at extremely high levels. And we’ve tracked their
health and their death records for 60 years and we’re not finding any ill
health effects.”
Attacking regulatory science is a common defense for industries. David
Michaels is an epidemiologist at George Washington University. He says
just like big tobacco questioned the link between smoking and lung cancer,
big business always questions the science.
“Companies know that by putting off the scientific debate for as many years
as they can they can keep doing the work that they’re doing and not be
disturbed. It works.”
For example, a recent meeting supposed to update residents about clean up
efforts turned into more of a debate between government scientists and scientists
hired by Dow. One member of the audience got sick of it.
“I’m not a geologist, I’m not a toxicologist, I’m just a resident that lives on
the river. And the last I knew dioxin was the most toxic substance known to
man. And what I’m seeing here is you guys trying to find excuses to justify
poisoning us.”
The EPA recently forced Dow to clean up four hot spots along the river,
including one spot with the highest concentration of dioxin ever found in the
United States.
But the last few months have had more set backs than
progress. In January, the EPA gave up trying to negotiate a clean up
agreement separate from Michigan’s. It said Dow’s proposals were going
backward.
Earlier this month the Region 5 director of the EPA was fired. Mary Gade
says it was because of her tough stance against Dow Chemical.
An endangered holiday darter. Darters are among the most threatened Southeastern fish; they have been likened to aquatic canaries. (Photo by Noel Burkhead, courtesy of USGS)
