The State of the Nation’s Lakes

  • The EPA found that 44% of the nation's lakes ranked fair or poor. (Photo by Randolph Femmer, courtesy of the National Biological Information Infrastructure)

The Environmental Protection Agency
has released its first comprehensive
survey of the nation’s lakes. Samara Freemark tells us what
the study turned up:

Transcript

The Environmental Protection Agency
has released its first comprehensive
survey of the nation’s lakes. Samara Freemark tells us what
the study turned up:

More than half the nation’s lakes are in good condition. That’s according to a nationwide survey just released by the EPA. But the agency found that 44% of lakes ranked only fair or poor.

The survey identified two major problems facing lakes. First, many of them are surrounded by development. And that can mean dirt and polluted water running off into the lakes.

And second, many lakes contained high levels of nitrogen and phosphorus, which can lead to harmful algae blooms.

Susan Holdsworth is with the EPA. She says those findings were concerning.

“These stressors are both widespread and pose a significant threat to the condition of our nation’s lakes.”

Holdsworth says the EPA will use the data to assess how well government programs are doing at protecting lakes. The results will also help set future EPA priorities.

For The Environment Report, I’m Samara Freemark.

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A Battle Over the Treatment of Livestock

  • The treatment of laying hens is one part of the issue getting a lot of attention in Ohio. (Photo source: LEAPTOUY at Wikimedia Commons)

Recently, six states have changed their laws to require
better conditions for farm animals. But there’s a battle
brewing in one state that’s putting a new spin on the debate.
Julie Grant reports:

Transcript

Recently, six states have changed their laws to require
better conditions for farm animals. But there’s a battle
brewing in one state that’s putting a new spin on the debate.
Julie Grant reports:

The Humane Society of the United States says it’s shameful
the way animals are treated on many American farms. Paul
Shapiro says veal calves, pregnant pigs, and egg-laying
hens are all kept in cages so small – it’s cruel.

“Hundreds of millions of egg-laying hens in the nation are
confined in tiny battery cages that are so restrictive the birds
are unable even to spread their wings.”

Shapiro says some farms house millions of hens, all
squished into tiny cages, and none of them get the chance to
nest, or act in any way like natural chickens. The Humane
Society has spent millions of dollars pushing for change in
California and other states.

But when the Humane Society hit Ohio with its campaign,
the state Farm Bureau Federation pushed back.

Keith Stimpert is spokesman for the Ohio Farm Bureau. He
says there’s a reason cages are a certain size for hens,
calves, and pigs: the animals’ safety.

“You can expand space, but you’re going to increase
aspects of fighting or cannibalistic behavior, or the chance
for that sow to fall down while she’s pregnant.”

Stimpert says the Humane Society doesn’t understand
livestock.

So instead of negotiating with the Humane Society, the Ohio
Farm Bureau is proposing something new: a state board to
oversee the care of livestock.

“I think we, in this case, can get to a better resolution on
animal care by organizing this board.”

The board would include family farmers, veterinarians, a
food safety expert, and a member of a local chapter of the
Humane Society, among others.

Voters will probably be asked in November to decide
whether to change the state constitution to create this board.

But the Humane Society’s Paul Shapiro says the board will
be stacked by the Farm Bureau. He calls it a power grab by
big agriculture.

“Keep in mind that these are people who have opposed,
tooth and nail, any form of agricultural regulation for years,
and now, all of a sudden, in just a few weeks, they’ve gotten
religion and feel grave urgency to enshrine in the state’ s
constitution their own favored system of oversight.”

Shapiro says this board will only protect the status quo. And
that’s not good for the animals.

Egg producer Mark Whipple runs a small farm in Clinton,
Ohio. He’s got about 1,500 hens. We caught up with him
delivering eggs at a local health food store.

He says his hens are free range.

“There ain’t no cages, really. They go in the box, lay their
egg, and go out and run around with the rest of ‘em, go eat,
drink, I don’t know, just be free.”

Whipple says he was never inclined to cage the hens.

You might expect him to side with the Humane Society on
this debate. But he doesn’t trust them to make decisions for
farmers.

“I don’t know that they really know where their food comes
from – other than they go to the grocery store or they go to
the refrigerator. Unfortunately, that’s a lot the mentality of
the world right now, so far removed from the farm at all,
knowing about livestock.”

Whipple says there are good producers and bad producers
out there – just like any business. He would rather see a
board like the one proposed by the farm bureau than a
mandate on cage sizes from a Washington DC-based
lobbying group.

But the Humane Society says the board proposed by the
Farm Bureau won’t make things better. If it’s approved by
voters this November, the Society plans to place its own
initiative on animal treatment on the ballot next year.

Meanwhile, other farm states are considering the Ohio Farm
Bureau’s approach and might soon have their own advisory
boards on how to treat animals.

For The Environment Report, I’m Julie Grant.

Related Links

New Central Air Units Save Energy

  • John Proctor in his workshop (Photo by Amy Standen)

It happens every year. Temperatures
get hot, and people crank up the air conditioning.
That means using more electricity from the
power grid. It means creating more greenhouse
gas emissions. And that could lead to global
warming and warmer temperatures. That means,
even more air conditioning! There are a few
ways to halt this vicious cycle, one of which
starts with a makeover for the air conditioner
itself. Amy Standen reports:

Transcript

It happens every year. Temperatures
get hot, and people crank up the air conditioning.
That means using more electricity from the
power grid. It means creating more greenhouse
gas emissions. And that could lead to global
warming and warmer temperatures. That means,
even more air conditioning! There are a few
ways to halt this vicious cycle, one of which
starts with a makeover for the air conditioner
itself. Amy Standen reports:

“Hi there! This is Al.”

Temperatures were expected to hit 105 degrees on the day I visited Al Mason’s Northern
California bungalow. But, standing in his very cool living room, he wasn’t too concerned.

Al Mason: “During the summer without the air, it was miserable.”

Amy Standen: “What’s it like now?”

Mason: “Oh it’s wonderful.”

That’s because Mason just bought himself a $10,000 central AC and heating system.

(sound of motor starting up)

Installer Jeff Scalier of the Blue Star Heating and Air Conditioning Company takes me
outside to show off the motor.

“This particular unit, I call it the Cadillac. It’s an HDL is the name of the unit, it’s side
discharged.”

New units like this are about twice as energy efficient as those sold thirty years ago.
That’s when the 1970s oil embargo inspired a slew of federal efficiency rules.

But Al Mason’s brand-new AC system still uses a lot more electricity than it needs to. At
least, that’s what John Proctor says. He’s an air conditioning entrepreneur in San Rafael,
just north of San Francisco.

“Air conditioners are designed one size fits all for the whole country. So you have a
hammer where you really would like something a little more precise.”

In other words, different climates require different air conditioners. For example, the day
I met John Proctor, it was about 75 degrees outside, maybe 25% humidity.”

“There’s a reason why we live here!” (laughs)

Meanwhile, about 3,000 miles east, residents of Tampa, Florida were wiping their brows
in 80% humidity. In other words, a completely different climate, where air conditioners
have a different job to do.

“In South Florida you have to do a lot of dehumidification, whereas in California, you
don’t have to do any dehumidification at all. So what they’re doing is taking moisture
out of the air and dumping it down the drain.”

In other words, because air conditioners are built for all climates, they don’t work
perfectly in any climate.

That fact inspired Proctor – with funding from the state of California – to design AC
systems for three different climates – the hot dry west, the soggy southeast, and the more
temperate Midwest. So that’s one model for Phoenix, another for Tampa, and a third for
St. Louis. He built them in an attic workshop upstairs from his office.

“So where does that data point show up on the graph?”

Proctor says these climate-specific units can use as much as 20% less electricity than the
one-size fits all models. But that doesn’t mean we can expect manufacturers to start
making them any time soon.

“From a manufacturing perspective, if you can just make lots of one air conditioner,
it’s easier, it’s cheaper. And that’s how they’re set up to do it.”

That’s why Proctor, along with California energy officials, went to Washington earlier
this year. Their goal was to get Congressional support for new, regional AC standards.
And it worked.

But putting these standards into law is another step. That’ll take a ruling from the Federal
Department of Energy – something, Proctor believes, is unlikely to occur until next
administration takes the White House.

For The Environment Report, I’m Amy Standen.

Related Links

Little Relief for Asthmatics

  • This commonly-prescribed albuterol asthma inhaler will soon be a relic of America's medical past. The federal government fears the device's chlorofluorocarbon-based (CFC) propellent harms the ozone layer. (Photo by Shawn Allee)

We usually expect environmental
regulations to make us healthier in the
long run. Well, there’s one coming down
that some people aren’t so sure about.
Reporter Shawn Allee says it has to do
with propellants in asthma medicine:

Transcript

We usually expect environmental
regulations to make us healthier in the
long run. Well, there’s one coming down
that some people aren’t so sure about.
Reporter Shawn Allee says it has to do
with propellants in asthma medicine:

Maureen Damitz struggles with asthma.

She’s got it and two of her kids do, too.

But fighting it is also a career.

Damitz is with the Respiratory Health Association of Metropolitan Chicago – it’s the
nerve center for asthma issues in her area.

She says recently, pharmacies have been running out of a familiar asthma inhaler.

“Our phones started ringing off the walls months ago. All of a sudden patients
started getting these new inhalers, and no one was prepared for that.”

The old-standby has been the albuterol inhaler – it’s for quick relief.

Damitz says there is a cheap generic, but it’s got a propellant with Chloro-fluoro-carbons
or CFCs.

And, the government’s banning CFC albuterol inhalers.

Damitz says some patients will miss them.

“When you’re spraying it, it comes out with quite a blast.”

(puff, puff)

“People mistake that as, ‘it forces it into my lungs’; it doesn’t, it’s just the type of
propellant.”

Three new inhalers have the same medicine but a different propellant, known as HFA.

“The new HFA comes out much softer and its warmer when it comes out. They
mistake that as, ‘Oh, my medication doesn’t work.’”

Damitz says studies show the new inhalers work just as well or better than old ones, but
some patients report just the opposite.

Regardless, no one will have a choice soon. By January, no pharmacy can sell albuterol
inhalers with CFC propellents.

Why?

“Originally it arose from the concern that CFC’s were damaging the atmosphere.”

Dr. Nicholas Gross is an asthma specialist.

He says CFCs used to be in many things – refrigerators, air conditioners, and asthma
inhalers.

But CFCs deplete the ozone layer in the upper atmosphere. That lets more solar radiation
through and causes skin cancer.

The government banned CFCs in most products.

But drug companies got exemptions and were slow to develop alternative propellants.

In 2005, the government asked a medical panel to speed things up.

“They were concerned nothing much was changing. It looked like companies were
going to keep claiming exemptions indefinitely, so they asked what we would
recommend they should do about that.”

Gross and other panelists found three competing albuterol inhalers with new propellents.

So, they recommended a ban start next year. Now, Dr. Gross regrets that ban.

“One thing I don’t think anybody paid enough attention to was the fact that it was
going to be much more expensive in the HFA version than the CFC version.”

CFC-based albuterol inhalers cost about thirteen bucks a pop.

New HFA ones cost three times that.

There won’t be a generic inhaler with the new propellant until 2010.

Dr. Gross worries some patients will go without.

“I think it’s very difficult for the FDA to turn around and rescind itself. It means
somebody made a mistake and in government that’s not something you’re allowed
to admit.”

But, the FDA is sticking with the ban.

One asthma expert is more at ease with the transition.

He’s Paul Greenberger – head of the Academy of Allergy, Asthma and Immunology.

He says if patients puff through new, expensive albuterol inhalers quickly – there might
be something wrong with how they’re using them.

“We don’t want people using them everyday if they can help it. We have to take a
look at their overall asthma control – do they need better therapy, frankly than
these albuterol inhalers?”

Of course, that might mean a doctor’s visit and new meds.

Dr. Greenberger says all of this is expensive, but he still supports a ban on CFC albuterol
inhalers.

He says if patients get treatment that’s also better for the atmosphere, well, that’s
priceless.

For The Environment Report, I’m Shawn Allee.

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Climate Change and Wildfires

  • Jennifer Pierce and David Wilkins stand in front of a ponderosa pine forest just outside the city of Boise. They hope to study the relationship between fire and climate here and recreate a snapshot of ancient climate. They are both teach at Boise State University's Geosciences Department. (Photo by Sadie Babits)

Twenty years ago this year, the
country watched its oldest national park
go up in flames. Looking back, scientists
believe the 1988 fires of Yellowstone
National Park were the signal fire of
climate change. Researchers have been
working ever since to understand this
relationship between climate and wildfire.
Sadie Babits reports on two scientists
searching for clues to ancient climates,
using trees as their guide:

Transcript

Twenty years ago this year, the
country watched its oldest national park
go up in flames. Looking back, scientists
believe the 1988 fires of Yellowstone
National Park were the signal fire of
climate change. Researchers have been
working ever since to understand this
relationship between climate and wildfire.
Sadie Babits reports on two scientists
searching for clues to ancient climates,
using trees as their guide:

Jennifer Pierce wears work boots as she plows down a steep slope in a
ponderosa pine forest.

(sound of walking, twigs breaking)

Her blonde hair is tucked up under her Boise State bronco cap, but it keeps
sneaking out. She has to keep brushing it back under. She and her
colleague David Wilkins are professors who work for Boise State
University’s Geosciences Department. They’re in the middle of tall pines in
a forest just outside of Boise, Idaho. Suddenly she’s crashing across the
brambles and heads for this tree.

“Oh that’s a great one! Wow! Sweet!”

She drops to her knees and shows me how this tree has been scarred by
fire.

“You see this little V shaped cat face here at the bottom of the tree that’s
blackened? So during a fire when the bark of the tree gets damaged that
preserves a record of the fire as a scar on the tree.”

Pierce says since the tree has annual growth rings, she can tell when the
tree got burned.

It’s one way Pierce and Wilkins reconstruct the fire history of this forest.
It’s a key to understanding how climate has affected forest fires in the past.

“I think as we move into a likely warmer and drier future, it’s going to be
increasingly important to understand the relationship between climate and
fire.”

She says climate is the primary control for wildfires. As the West warms,
there’s less control. Recently, that’s meant a lot more wildfires.

(popping sound) “There you go!” (sound of a drill bit going through the tree
with sound of birds and forest)

David Wilkins is twisting an auger into the tree.

“It’s a good upper body workout!” (laughs)

It’s a way to take a sample of the rings of this tree. Within a half-minute,
Wilkins’ auger is stuck. The tree is rotten inside. An eight-inch core is all he
gets.

(sound of drill bit coming out of the tree)

Jennifer Pierce takes a look at this sample Wilkins twisted out. The rings –
some light, some dark – reveal just how the tree has responded to moisture
and temperature.

“If you have a tree that kind of is at the edge of its comfort zone so to
speak, it will be more of a sensitive recorder of those environmental
stresses. See this one looks pretty good.”

Tree rings aren’t the only clue these scientists use to reconstruct historic
climates.

(scraping sound)

“I didn’t bring my big shovel. I kind of feel naked without it.”

Pierce scrapes away dirt and she finds bits of charcoal. She can sometimes
use charcoal for radio carbon dating. But these won’t do.

“But, um, I wouldn’t use them for dating because you want to make sure
that the charcoal is stratographicly in place and that you haven’t had
critters burrowing and mixing things up.”

Charcoal can be dated much further back than the tree rings. It helps
Pierce and Wilkins understand what happened here thousands of years
ago. With samples from other scientists, they’ll get a snapshot of ancient
climate and how it affects wildfire.

And possibly determine what climate change will mean for forests in the
future.

For The Environment Report, I’m Sadie Babits.

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