EPA’s Report on PBDEs

  • The EPA report says the findings of many studies raise particular concerns about the health risks to children. (Photo courtesy of Stephen Cummings)

A new report from the Environmental Protection Agency links health problems to flame retardants. Lester Graham reports the EPA finds children are most at risk.

Transcript

A new report from the Environmental Protection Agency links health problems to flame retardants. Lester Graham reports the EPA finds children are most at risk.

Polybrominated diphenyl ethers, or PBDEs, are flame retardant chemicals used in all kinds of household consumer products. Sofas, computers, babies’ funiture. The report finds kids are getting a higher dose of PBDEs. That’s bad because the chemicals have been linked to many different developmental and reproductive health problems.

Arlene Blum is a chemist at the University of California Berkeley. She says the report notes PBDEs migrate from foams and plastics into household dust.

“Eighty to ninety percent of the human dose is from dust. So, toddlers, you know, they crawl in the dust, put their hands in their mouths. So, that’s why toddlers have such a high level at such a vulnerable time.”

The EPA report says the findings of many studies raise particular concerns about the health risks to children.

For The Environment Report, I’m Lester Graham.

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Too Many Concessions in New Climate Bill?

  • Critics of the new bill say Kerry and Lieberman are giving too much away to polluting industries to attract more votes. (Photo courtesy of Tim Pearce)

Senators John Kerry and Joe Lieberman unveiled their climate and energy bill. It has support from some big fossil fuel industries. And several environmental groups say… it’s a good first step. But Mark Brush reports, critics are arguing it gives too much away to polluting industries:

Transcript

Senators John Kerry and Joe Lieberman unveiled their climate and energy bill. It has support from some big fossil fuel industries. And several environmental groups say… it’s a good first step. But Mark Brush reports, critics are arguing it gives too much away to polluting industries:

The American Power Act sets a national goal for reducing greenhouse gas emissions. And it would stop states from setting their own greenhouse gas standards.

It also provides billions of dollars to the coal industry to develop carbon capture technology. And it encourages more offshore drilling by offering states a share of royalties.

Kieran Suckling heads up the Center for Biological Diversity. He says by trying to attract more votes – Kerry and Lieberman are giving too much away to polluting industries:

“If all those giveaways and buyoffs got you the votes you needed, so you could actually pass the bill, you might hold your nose and say o.k. But it’s not even working. So you have all the giveaways and then you still get massive opposition.”

So far – despite the concessions – no republicans have stepped forward to support the bill.

For The Environment Report, I’m Mark Brush.

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Arctic Ocean Methane

  • A recent study shows the arctic seabed is releasing up to ten-million tons of methane annually. (Photo Courtesy of Patrick Kelley, U.S. Coast Guard)

New research indicates the Arctic seabed is releasing methane at a rate higher than all the other oceans of the world combined. This recent discovery raises concerns about the pace of global warming. Lester Graham reports:

Transcript

New research indicates the Arctic seabed is releasing methane at a rate higher than all the other oceans of the world combined. Lester Graham reports, this recent discovery raises concerns about the pace of global warming.

Under a shallow part of the Arctic Ocean, the seafloor was thought to be permanently frozen, capping vast stores of methane underneath. Researchers at the University of Alaska Fairbanks have found that frozen cap is beginning to leak large amounts of methane into the atmosphere. Natalia Shakhova is one of the leaders of a team that’s been studying the permafrost under the Arctic Ocean.

“What we’re having now, it’s up to ten-million ton[s] of methane annually escaping from this seabed. That means that permafrost does not serve as an impermeable cap to prevent these leakages any longer.”

Methane is a greenhouse gas 30 times more potent than carbon dioxide. The greatest concern about methane releases had been the permafrost on land… but this underwater release could mean climate changes could accelerate.

For The Environment Report, I’m Lester Graham.

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Interview: A Pound of Coal

  • Coal train. (Photo courtesy of the Energy Information Administration)

When you turn on the lights,
there’s a pretty good chance
you’re burning coal. Almost
half of the nation’s electricity
comes from coal. Burning coal
causes the greenhouse gas,
carbon dioxide. But, have you
ever wondered how much?
Lester Graham got a pound of
coal, and then talked to Ezra
Hausman. He’s
the Vice President of Synapse
Energy Economics in Cambridge,
Massachusetts. The first question –
how long would a pound of coal
light up a hundred-watt incandescent
light bulb?:

Transcript

When you turn on the lights,
there’s a pretty good chance
you’re burning coal. Almost
half of the nation’s electricity
comes from coal. Burning coal
causes the greenhouse gas,
carbon dioxide. But, have you
ever wondered how much?
Lester Graham got a pound of
coal, and then talked to Ezra
Hausman. He’s
the Vice President of Synapse
Energy Economics in Cambridge,
Massachusetts. The first question –
how long would a pound of coal
light up a hundred-watt incandescent
light bulb?:

Ezra Hausman: Well, you haven’t told me where you got that pound of coal. Uh, it makes a big difference if it’s from the Appalachian region or the Western region, such as Wyoming in the United States. The Appalachian coal, Eastern coal, would burn a light bulb for about, uh, 10 or 12 hours. A pound of Western coal would only burn it for about 5 or 6 hours.

Lester Graham: There’s that much difference?

Ezra: There’s a big difference in the energy content of the coal, that’s correct.

Lester: And coal, a good portion of coal, is pure carbon. What kind of CO2 omissions would we expect from this one kind of coal?

Ezra: Well, a pound of coal is, let’s say, it’s about half carbon. So that would be a half a pound of carbon, but for every atom of carbon you add two atoms of oxygen from the air. So, you get for every 12 grams of carbon, you get 44 grams of carbon dioxide. That’s basically just how the chemistry works out when you burn carbon and oxygen; it produces carbon dioxide in that ratio.

Lester: So, this one pound of coal, would admit, by weight, more CO2 than I have in my hand here?

Ezra: That’s right; it would end up admitting about two pounds of CO2. Depending again on where the coal came from and how much carbon is in it.

Lester: Now my environmentalist friends would like to see no more coal plants built, no more coal burning power plants built, simply because of the CO2 emissions. The coal industry tells me they’re working on clean coal; there are experiments going on right now to find ways to sequester CO2 and other experiments going on how to store it underground. What do you think is the future of coal?

Ezra: Well, first of all, I think it’s important to say that there is no such thing as clean coal today. So in the first place, coal mining is an extremely environmentally damaging and dangerous process. The high volumes techniques that are now in use including strip-mining and mountain top removal have devastating consequences on mining regions. And secondly, while there are techniques in place that eliminate many of the regular pollutants such as sulfur and nitrogen from coal combustion, there is no current technology that can significantly reduce the amount of CO2 emitted from power plants.

Lester: What do you see as the future of coal and power generation from coal in America in the future?

Ezra: Well, I think we really have no option but the phase out the use of coal for power generation over the next several decades. The problem with coal is not that each pound has so much carbon; the problem is that there is just a vast reservoir of carbon and potential carbon dioxide in the coal reserves under ground in the United States.

Ezra Hausman is Vice President of Synapse Energy Economics.
He talked with The Environment Report’s
Lester Graham.

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Emissions Down With the Economy

  • The Energy Information Administration projects that in 2009 we'll cut our greenhouse gas emissions by 5%. (Photo courtesy of the US EPA)

The recession doesn’t have a lot of upsides,
but there is an environmental silver lining.
Carbon dioxide emissions are down. But,
as Tamara Keith reports,
greenhouse gas emissions are expected to
rise as the economy improves:

Transcript

The recession doesn’t have a lot of upsides,
but there is an environmental silver lining.
Carbon dioxide emissions are down. But,
as Tamara Keith reports,
greenhouse gas emissions are expected to
rise as the economy improves:

The Energy Information Administration projects that in 2009 we’ll cut our greenhouse gas emissions by 5%. Emissions were down in 2008 too.

Elias Johnson is an energy analyst. He says the economy is expected to pick up next year. That means coal, natural gas and petroleum use will pick up too.

“It’s not all going to happen at one time, so that will be gradual. And then visvis the emissions from that energy consumption will probably increase gradually.”

In 2010, Johnson says emissions are projected to rise 0.7%. Not much, really. And emissions will still be lower than they were when the economy was booming.

“For one thing, the economic activity is not going to be getting back to those levels.”

For The Environment Report, I’m Tamara Keith.

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Captive Otters Adopt Orphaned Pups

  • Now that surrogate moms raise the otters, the goal is for the pups to never see or hear a human. To get up close to the pup, Ann had to put on a Darth Vader costume of sorts. (Photo by Angela Hains)

For animals in most zoos and
aquariums, the door from freedom
to captivity only swings one way.
But at the Monterey Bay Aquarium,
sea otters from its exhibits teach
wild sea otter orphans how to
survive in the ocean. Ann Dornfeld
has the story:

Transcript

For animals in most zoos and aquariums, the door from
freedom to captivity only swings one way. But at the
Monterey Bay Aquarium, sea otters from its exhibits teach
wild sea otter orphans how to survive in the ocean. Ann
Dornfeld has the story:

Rosa has her baby in a headlock. That’s actually how
southern sea otters hold their young.

“The pup is essentially unconscious – it’s very much
asleep, and Rosa is holding it as a female would in the
wild: she’s got it sort of teed off to her side with a paw
around its neck.”

Andy Johnson is the director of the Monterey Bay
Aquarium’s Sea Otter Research and Conservation
program.

By the end of the19th century, sea otters had been hunted
to extinction in some parts of the Pacific.

Lilian Carswell is with the U.S. Fish and Wildlife Service.
She says these days, pollution and disease are sea otters’
biggest threats. And she says a lot of other species
depend on otters’ survival.

“Sea otters are important for a number of reasons. One is
that they’re a top predator in the nearshore marine
ecosystem and they play an important role in structuring
what that ecosystem looks like.”

Hungry sea otters keep sea urchin populations in check.
When urchins overpopulate an area, they can mow down
entire kelp forests that provide food and shelter for
hundreds of species.

So to help conserve the otter population, Andy Johnson
and his team at the Monterey Bay Aquarium pair orphaned
pups from the wild with the female exhibit otters. The goal
is for the surrogate mother to not only care for the pup, but
also to teach it all the skills it will need to be released back
into the wild at about six months old.

A volunteer has just tossed some food into the pool where
Rosa and the orphaned pup are swimming. Rosa grabs
the live crab as the pup watches.

“Rosa’s quite skilled with those, so she’ll pretty much take
that apart in a few minutes. We’ll have to watch the pup
and see if the pup approaches the crab without getting
pinched. I have to admit it’s quite amusing to see these
young animals confronting these crabs ’cause these crabs
are pretty formidable on their own.”

Rosa ends up breaking off a leg for her adopted pup, who
decides the shell is too much work. Before long, though,
the pup will learn some of the same impressive skills that
adult sea otters have – like how to use tools to open clams
and sea urchins.

Before the surrogate program began, workers and
volunteers used to hand-rear these pups. They’d even
take the pups swimming in Monterey Bay to acclimate
them to their future home.

But that made the released otters expect food from
boaters and other people they encountered in the bay.

Now that surrogate moms raise the otters, the goal is for
the pups to never see or hear a human. We’ve been
watching the sea otters interact from a TV monitor near
the pool. To get up close to the pup, I have to put on a
Darth Vader costume of sorts – starting with a huge black
nylon poncho.

(sound of the poncho)

Ann: “This is a welding mask?”

Andy Johnson: “A very cheap welding mask.”

Rosa isn’t fooled. As I approach the pool, she shoots over
to see whether I have food.

(sound of the otter sniffing around)

Rosa was a rescued pup. She was hand-reared before the
surrogate program began. After she was released into
Monterey Bay, she had to be recaptured because she was
jumping on kayaks and divers.

“We found that with the sea otters, putting them with an
adult female in a fairly shallow pool for six months far
outweighs whatever we were doing trying to raise these
pups.”

Sea otter populations are recovering at a slow pace in
California. But this program is contributing to the
population.

Johnson says the apparent survival rate of the re-released
pups is now about as good as that of newly-weaned pups
in the wild. Some have even successfully raised their own
pups, using skills they picked up from an exhibit otter at
the aquarium.

For The Environment Report, I’m Ann Dornfeld.

Related Links

Abandoned Pet Pythons Invade Everglades

  • Large Burmese pythons are now regularly encountered along trails and visitor areas in the park (Photo courtesy of the National Park Service)

A python native to Asia is popping up in one national park. Kyle Norris reports:

Transcript

A python native to Asia is popping up in one national park. Kyle Norris reports:

The Burmese Python is showing up in Everglades National Park in Florida.

That’s because people who no longer want their pet pythons are releasing them there.

Now these babies are big — usually they between 6 to 12 feet long. And there could be as many as 150,000 pythons in the Everglades.

The snakes are not so much a threat to humans. But they are a threat to animals – especially to endangered ones.

Scott Hardin is an exotic species coordinator. He’s with the Florida Fish & Wildlife Conservation Commission.

“You just got a great big snake, nothing like it, nothing analogous in the native snake fauna in Florida. So it opens up a whole new range of prey that was not susceptible before.”

He says officials are brainstorming ways to deal with the problem.

They’re trying to rig up some really big traps. And they’ve also thrown out the idea of a bounty — basically a cash reward for catching the snakes.

For The Environment Report, I’m Kyle Norris.

Related Links

Throwing the Big Fish Back

  • Fishing laws in Canada and US states often protect small fish and are less restrictive with big ones. (Photo courtesy of the US Fish and Wildlife Service)

People who love to fish spend plenty of money on gear, license fees and even gas for their boats. It’s enough to make anglers think, maybe they’re entitled to keeping the biggest fish for trophies or the frying pan, right? Shawn Allee met a researcher who wants you to throw back your biggest catch:

Transcript

People who love to fish spend plenty of money on gear, license fees and even gas for their boats. It’s enough to make anglers think, maybe they’re entitled to keeping the biggest fish for trophies or the frying pan, right? Shawn Allee met a researcher who wants you to throw back your biggest catch:

This is the guy who wants to change how a lot of people fish.

“My name is Paul Venturelli and I study fisheries biology at the University of Toronto.”

Venturelli’s disturbed by how many fish species are on the brink of collapse – either in oceans or in fresh water.

He hopes to grow fish stocks – with this fishing advice.

Toss the big ones back.

And what’s he got to back that up?

“I’ve got about ten pages of notes here. Nah, I’m kidding. I’m kidding.”

Actually, he says the idea is pretty simple.

“A ton of big, old fish will produce more new fish than a ton of smaller, younger fish. And this is because the bigger, older fish tend to produce offspring that have a higher chance of survival.”

Venturelli studies mostly ocean-species, but he says the principal should apply to North American freshwater fish like pike and walleye, too.

But Venturelli’s got a problem spreading this idea around.

Fishing laws in Canada and a lot of US states often protect small fish and are less restrictive with big ones.

I asked one of the head guys in Illinois fisheries, Joe Ferencak, why that is.

“Essentially what you’re doing with that minimum size limit is protecting one or two year classes of reproductive age fish so they can successfully spawn or reproduce.”

Ferencak says, fisheries science has stood behind the ‘protect the small fish’ theory for decades – with some exceptions.

He says to change laws, Venturelli would need to do more studies.

Plus, Ferencak says no state would want to completely keep people from big fish – that’s just not much fun.

“We want to maintain and enhance these fisheries for the benefit of the fishing public, the angler. And it’s kind of counter-intuitive to not allow them to take these larger fish.”

Well, I figure it wouldn’t be fair to talk about big fish without talking to outdoorsmen, so I spent some time in Griffith, Indiana.

It’s about ten miles from Lake Michigan.

Fishing and hunting outlets are all around – and there’s this place.

Allee: “So what’s the establishment.”

Leap: “American Natural Resources.”

Edward Leap Senior runs American Natural Resources – it’s a taxidermy shop – with stuffed deer, fox, and fish filling every nook and cranny.

I figure Leap would rush to the defense of catching big fish, but, you know what? He doesn’t bite.

Allee: “If you get a whole bunch of fish in your boat, I mean, you want to show off the big one. Most people do, right?”

Leap: “Yes and no, though. When you get talking about the conscientious outdoorsman, no, he’s not going to be thinking this way. He’s going to say, ‘I got this fifteen pound walleye, a super-trophy fish. It took a lot of years to grow this fish, I’m going to take a picture of it and I’m going to release it.'”

And, to prove the point, he reaches back and pulls a fish trophy off the shelf.

“For the trophy part of it, we’ll do a reproduction of it that you can’t tell from the real thing. And the fish now is out there spawning, and making eggs, and continuing its species.”

Leap says more and more fishermen are having him make fake fish – or, reproductions, as he calls them.

So, from his vantage, scientists like Paul Venturelli won’t have too much trouble with the advice to ‘throw back the big ones.’

Leap says you don’t have to keep fish you catch, and in his experience, smaller fish make better eating anyway.

For The Environment Report, I’m Shawn Allee.

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Interview: Grist on Shower Curtains

  • 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.”

Graham: “I’ll avoid that. (laughs) Alright, thanks Sarah, thanks very much.”

Burkhalter: “Sure, thanks Lester.”

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Cutbacks in Toxic Release Reporting

  • New rules from the EPA thousands of companies will no longer have to publicly disclose when they release toxic chemicals. Some companies were required to report the release of 500 pounds or more of certain chemicals. The new rule raises the reporting requirement to 2000 pounds.

The Environmental Protection Agency lets companies release toxic chemicals
into the environment. But they’re supposed to file detailed reports on the
kinds of chemicals they release. Mark Brush reports – under a new EPA rule,
some of these companies will no
longer have to tell us how much they pollute:

Transcript

The Environmental Protection Agency lets companies release toxic chemicals into the
environment. But they’re supposed to file detailed reports on the kinds of
chemicals they
release. Mark Brush reports – under a new EPA rule, some of these companies will no
longer have to tell us how much they pollute:

If you want to know what kind of pollution is released near your neighborhood – you
can
type in your zip code on the EPA’s Toxic Release Inventory website.

In the past, companies had to report if they released more than 500 pounds of a
certain
kind of toxic chemical. But now, some companies won’t have to report unless they
release 2000 pounds or more.

Tom Natan is with the National Environmental Trust. His group analyzed the new
rules.
They found that around 3,600 companies will no longer have to provide their neighbors
with detailed information:

“And if I were living nearby, I would want to know that these chemicals were being
released in these amounts from that facility. If you don’t necessarily know that
you’re
being exposed then there isn’t anything you as a citizen can do about it.”

The EPA says these new rules will ease some regulatory burdens on industry. Congress
is expected to take a closer look at the new rule in its next session.

For the Environment Report, I’m Mark Brush.

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