plants - The Environment Report

Marketplace Ready for Soybean Sunscreen?

Scientists at the USDA Agriculture Lab in Peoria may have discovered a way to protect skin from sun damage without harming the environment. The Great Lakes Radio Consortium’s Tanya Koonce reports the new mixture has a soybean or vegetable oil base:

Transcript

Scientists at the USDA Agriculture Lab in Peoria may have discovered a way to protect skin from
sun damage without harming the environment. The Great Lakes Radio Consortium’s Tanya
Koonce reports the new mixture has a soy bean or vegetable oil base:

Right now most sunscreens are made from a cream or petroleum base that doesn’t break down in
the water. Two scientists at the Ag Lab in Peoria think they may have a way to remedy that by
using soybean oil and another plant based product called ferulic acid. Joe Lazslo is the lead
scientist who came up with the idea.

“The ferulic acid is present in plants. And if plants were worried about getting sunburned they
already have their sunscreen present. We’re just taking it out of plants and putting it into
soybean oil so that it can then be incorporated into cosmetics or other suntan lotions, that type of
thing.”

Laszlo and his colleague Dave Compton are standing in the lab next to a bottle of Kroger brand
vegetable oil. They use the same soybean oil in the lab you’d buy at the store. Lazslo says it gets
the job done. He says they’ve been working on their so-called soy screen mixture for
more than a year:

“There are many aspects or uses of the process that we are doing right now that are very
environmentally sound. We don’t pollute with this process. All the starting materials and
products are very environmentally benign. That means Soy Screen itself does not accumulate in the
environment. It’s biodegradable. All these types of things.”

Lazslo says most importantly Soy Screen doesn’t build up in the water supply. But because it’s
just barely out of the lab, doctors and other scientists are not willing to weigh in on its pros or cons
for human use. Specifically they are quiet on the dermatological effects – like whether the
vegetable oil-based product clogs skin pores.

But Lazslo says other scientists have found anti-oxidants like ferulic acid prevent wrinkling and protect against the sun’s rays that are known to cause
skin cancer. He says before Soy Screen makes its way into face lotions and other consumer
products licensing companies will have to confirm these claims.

While doctors aren’t ready to sing the praises of Soy Screen, soybean growers are. In the best
case scenario, Soy Screen would require about a million pounds of soybean oil each year. That
just barely scratches the surface
of the 800 million pound annual surplus. But the Soybean Growers Association’s Theresa Miller
says it does have an impact on public perception.

“We always are looking for any new use that might develop. You know as much as anything, of
course getting a product like a soy sunscreen or soy crayons or some of these uses that maybe don’t
mean a lot in terms of bushels, they do mean a lot in terms of public relations. In terms of getting
the word soy out in front of consumers and making them more aware of what all those soybeans out in
the field get used for.”

Soy Screen is likely years away from receiving the FDA’s blessing, despite the perks it may offer
the environment and soybean growers. Co-developer Dave Compton says it takes several years
and several million dollars for the FDA to approve something as a sun block:

“Currently the FDA regulates these active ingredients as “category one” drugs. So you have to have
FDA approval to claim an SPF. So before you will see a packaged retail item with the word Soy
Screen and an SPF we would have to go through an FDA approval of the Soy Screen.”

Compton says in the meantime Soy Screen will likely work its way into cosmetic products that
claim anti-aging effects. He says the money earned from its use in those anti-aging cosmetics will
help defray the cost of the FDA approval process. For the Great Lakes Radio Consortium, I’m
Tanya Koonce.

Study Finds Deer Reduce Forest Diversity

A soon-to-be-published study concludes that deer overpopulation is having a devastating, long-term impact on forests. The study will come out next month in the journal Ecological Applications. The Great Lakes Radio Consortium’s Cindi Deutschman-Ruiz reports:

Transcript

A soon-to-be-published study concludes that deer overpopulation is having a
devastating, long-term impact on forests. The study will come out next month in the
journal Ecological Applications. The Great Lakes Radio Consortium’s Cindi Deutschman-Ruiz reports:

The U.S. Forest Service study was conducted in Pennsylvania’s
Allegheny National Forest. It examined deer densities
ranging from 10 deer to 64 deer per square mile.
As deer increased, tree species declined.

Red maple, sugar maple, white ash, yellow poplar, and
cucumber trees were all adversely affected, and native yew has been practically eradicated in the forest.

Steve Horsley is the study’s co-author. He says the next step is to determine
whether the impact of deer on forests is as great in areas where there
are also housing developments and
farmland.

“Deer tend, for example, when agriculture is in the mix, to
spend their time eating alfalfa and corn,
which have more digestible energy than most of the
plants that you find in the woods.”

Horsely says in the meantime, deer populations must come down,
preferably to less than 20 per square mile. In the Allegheny National Forest, that would mean cutting the
population in half.

For the Great Lakes Radio Consortium, I’m Cindi Deutschman-Ruiz.

Climate Change Affecting Backyard Wildlife

A recent study in the scientific journal Nature suggests the effects of global warming can be seen in people’s backyards. The Great Lakes Radio Consortium’s Erin Toner reports:

Transcript

A recent study in the scientific journal Nature suggests the effects of global warming
can be seen in people’s backyards. The Great Lakes Radio Consortium’s Erin Toner reports:

The study compiles data from scientific papers on climate change and from personal
nature recordings from people all over the world. It finds that plants and animals
appear to be changing their behavior in response to increases in the average global
temperature over the past century.

Michigan State University researcher Kim Hall contributed to the report. She says
for many species, spring events are happening about five days earlier every ten years.

“Those include things like the first arrival dates of birds when they’re migrating into
their summer habitat. Also, sounds, like the first calls of frogs and toads when they
begin the breeding season in the spring. And there’s a lot of different things
related to the timing of plants, such as the first time they bloom in
the spring or when fruits arrive.”

Hall says it isn’t known how earlier springs will affect the environment. But she says they
could spell trouble for many species if food supplies and habitats are not protected.

For the Great Lakes Radio Consortium, I’m Erin Toner.

Making Electricity From Grass

Low prices for corn and soybeans have led many Midwest farmers to look for a new crop to mix with their usual rotation. Some are turning to plants grown specifically for what’s called “biomass.” Biomass crops can be used as fuel. While research on biomass is in its infancy… one particular crop has caught the eye of researchers who say it would be perfect for Midwest power plants. The Great Lakes Radio Consortium’s Shawn Johnson reports:

Transcript

Low prices for corn and soybeans have led many Midwest farmers to look for a new crop to mix
with their usual rotation. Some are turning to plants grown specifically for what’s called
“biomass.” Biomass crops can be used as fuel. While research on biomass is in its infancy… one
particular crop has caught the eye of researchers who say it would be perfect for Midwest power
plants. The Great Lakes Radio Consortium Shawn Johnson reports:

In a farm field not too far from the University of Illinois stands a small plot of miscanthus. The
wavy, 12-foot tall grass topped with fluffy, seedless flowers is native to some places in Europe,
where it’s catching on as a crop to burn. Researcher john clifton-brown of Trinity College in
Dublin, Ireland has grown miscanthus on his father’s farm for 12 years now. He says it’s a
natural fit for Illinois.

“You seem to have in Illinois superb soil. You seem to have very low corn prices. You have
rainfall. And these factors combined look like a golden opportunity for the development of
renewable energy from biomass crops like miscanthus.”

Miscanthus is giant grass that can be planted in the same fields that normally grow corn and
soybeans. The similarities pretty well stop there. Where most Midwest farmers are used to
growing crops that produce food, miscanthus is grown specifically to be chopped off, bailed, and
burned, usually with coal in coal-fired power plants.

John Caveny owns the land where this miscanthus plot is growing. He stops short of calling this
a new way of farming:

“Well, in way it is, in a way it isn’t. What all farmers do, when you get right down to it, is
advance the value of sunlight energy. That’s what you do, whether you grow tomatoes, whether
you grow flowers, whether you grow grass, whether you grow corn.”

In the case of growing miscanthus, the process is much different than that of most Midwest crops.
Farmers use multi-row planters pulled behind tractors to plant corn and soybeans. To grow
miscanthus, a producer needs to dig holes and plant sprigs of the grass one at a time to be
successful. The crop will grow back on its own year after year for up to 30 years, but it’s not big
enough to be harvested the first few years its in the ground. Even with all these complications,
University of Illinois researcher Steve Long says a farmer who’s willing to make an investment in
miscanthus can reap great rewards in the long run.

“You do need labor to put this into the ground, but then after that, this is considerably less labor
than corn or soybeans, and on current figures, it is more profitable.”

Those figures are more theory than reality at this point, because a market for miscanthus has yet
to emerge. Dynegy is the only power company that buys miscanthus in this part of Illinois. And
even dynegy won’t be ready to harvest biomass crops on a large scale for another five years. But
the energy company projects it could eventually pay 40 dollars per ton of dried… harvested
miscanthus. That’s pretty good money for the farmers. The reason dynegy will pay that much?
While it doesn’t burn as efficiently as coal… miscanthus emits far fewer pollutants. And while it
emits greenhouse gases such as CO-2 while it’s burning, it will recapture those gases when it
grows. As energy companies are forced to meet more and more environmental requirements,
Dynegy’s Chris Williams says miscanthus becomes appealing:

“It’s getting closer and closer to the cost of coal generation. And you look at that with the
environmental benefits of the biomass, it really makes sense to do the research now to get it into
production as soon as we can.”

Dynegy is looking for farmers to grow miscanthus within a 50-mile radius of one of its central
Illinois power plants. But the company doesn’t know how many farmers it will be able to find.
Even if enough farmers are interested, dynegy is still working out the specifics of harvesting,
shipping, and burning grass effectively.

Miscanthus and biomass crops such as corn for ethanol and soybeans for soy diesel are just part
of a growing renewable energy market. And they face plenty of competition. Hans Detweiller is
with the environmental law and policy center, which advocates renewable energy in the Midwest.
Detweiller says wind and solar power generation are simply more established than biomass right
now:

“Biomass energy has more questions I think in the minds of the public than some of the other
energy sources, but we would like to see more of it. Especially where you can get parallel
benefits such as increased water quality, increased wildlife habitat, things like that.”

Detweiller says miscanthus could fit that billing, but other biomass crops might be more suitable.
Depending upon who you talk to, fields of young aspen or willow trees could even be the biomass
crops of the future. And Detweiller says a native plant like switchgrass is an attractive option
because it does not grow nearly as thick as miscanthus allowing wildlife to forage more freely.

But it’s that thickness that researcher John Clifton brown says makes miscanthus so appealing
and potentially so profitable to a farmer. As he stands next to a wall of miscanthus, Clifton-
Brown says the crop he’s grown in Ireland for a dozen years will only perform better in America.

“So try it. Suck it and see as we say in Europe.”

Clifton-Brown’s miscanthus is harvested only once a year. Others biomass crops are chopped off
a few times. They each have slightly different growing seasons, but all have at least one thing in
common. They represent a future where the energy we mine today could eventually be mowed.

For the Great Lakes Radio Consortium, I’m Shawn Johnson.

Public Outcry Absent From Invasives Problem

Government, industry, and activists work to inform people about individual threats of non-native invasive species. However, there is no comprehensive approach to reducing biological contamination of the Great Lakes region.

One of the biggest environmental problems facing the Great Lakes is the introduction of foreign plants and animals. Invasive species such as the zebra mussel are causing havoc to the lakes. Local, state, and federal governments know about the problems. But there’s not been much public pressure on the governments to do much about them. The Great Lakes Radio Consortium’s Lester Graham reports:

Transcript

One of the biggest environmental problems facing the Great Lakes is the introduction of
foreign plants and animals. Invasive species such as the zebra mussel are causing havoc
to the lakes. Local, state, and federal governments know about the problems. But there’s
not been much public pressure on the governments to do much about them. The Great
Lakes Radio Consortium’s Lester Graham reports:

Here’s a factoid for you. In the United States alone in the 1980’s and ’90’s, it’s estimated
that it cost more than two-billion dollars to keep zebra mussels from clogging up water
intake pipes. Two-billion! Guess who paid for that? You did – in higher bills.

Zebra mussels are an invasive species. That is, they are native to a foreign place and they
were transported here – like many invasives – by a ship. Zebra mussels were sucked up in
ballast water in a foreign port and then pumped out in a Great Lakes port. The zebra
mussels have spread all over the Great Lakes, in huge numbers. They attach to
everything, including intake pipes. They’ve crowded out native mussels. And zebra
mussels eat the microscopic plant life at the bottom of the food chain, making fish more
scarce and causing fish prices to go up.

And that’s just the beginning. There’s been something like 160 invasive species such as
foreign fish, aquatic nuisances, plants, and insects brought into the Great Lakes region
one way or another and each one has caused problems. Dutch elm disease kills trees. A
fish called round goby eats the eggs of native sport fish. Invasive mites are killing off
honey bees.

“People aren’t outraged about it. And they’re not outraged about it because, I think, we in
the public interest community and the government side haven’t done what it takes to
clearly communicate why this is a problem to people.”

Cameron Davis is with the Lake Michigan Federation, an environmental group that
works to get policies changed in the Great Lakes basin. Davis says most of the time
people just don’t understand that because the government is not doing enough to stop
invasive species from entering the country, it ends up costing them and takes a toll on the
natural environment.

“When zebra mussels, for example, get into drinking water intakes, municipalities have to
pay to keep those things out of there. That means higher rates for you and me. For other
people, fishing is impacted. Invasive species getting into the lakes can mean competition
for those native species like yellow perch because of round gobies, because of zebra
mussels and other invasive species getting into the Great Lakes.”

The government agencies which work on these kinds of problems know about them and
some things have been done to try to prevent new invasive species from being introduced
or control them once they’re here.

Tom Skinner is a regional administrator for the U.S. Environmental Protection Agency
and also heads up the EPA’s Great Lakes National Program Office. Skinner says there
are several obstacles to stopping the invasions.

“One is identifying all the possibilities out there. Two is identifying how they get into the
lakes. Three is coming up with a technical solution to deal with the invasive nature of the
species. And four is getting the resources to make sure that you put the technical
solutions into place.”

And there’s another problem – government agencies, much like people, tend to deal with
one problem at a time. For example, sea lampreys entered the Great Lakes after a canal
was opened. They decimated lake trout populations. Government agencies attacked that
problem. Asian carp are threatening to spread from the Mississippi River system into the
Great Lakes through a canal. Government agencies are putting up barriers. One problem
equals one fix.

Tom Skinner’s counterpart in Canada, John Mills with Environment Canada, says
governments are beginning to realize that stopping the spread of invasive species cannot
just be fixed one problem at a time.

“It isn’t a simple problem of just focusing in on ballast water. It’s a much broader
problem. You can get organisms coming in on wood or other commodities that will take
up residence in the basin and create havoc.”

So, there are lots of ways for invasive species to enter the Great Lakes region. But the
Lake Michigan Federation’s Cameron Davis says no one seems to be looking at the
overall problem.

“We’ve got a number of different gateways to get into the Great Lakes, but we have all
kinds of different departments looking at A) individual gateways, or B) looking at
individual species. Nobody’s really there to pull it all together. We have a big
institutional problem that way.”

And there’s no one movement among environmental groups or consumer groups to
pressure the governments to step back and look at the policies that allow shipping and
trade to continue to easily transport invasive species into the Great Lakes region.

The EPA’s Tom Skinner says government agencies are working on it.

“We’re going to continue to work with the Coast Guard, with the Corps of Engineers,
with our friends to the north in Canada and try and come up with a comprehensive
solution to these various invasive problems. But, it’s easy to say; it takes a great deal of
work and effort to do that.”

And government agencies are not getting any real kind of public pressure to do it because
the public doesn’t realize the price it’s paying for invasive species.

For the Great Lakes Radio Consortium, this is Lester Graham.

Invasive Insect Laying Waste to Area Trees

Scientists are working to control a new non-native beetle that’s destroying hundreds of thousands of ash trees in the Midwest. The Great Lakes Radio Consortium’s Erin Toner reports:

Transcript

Scientists are working to control a new non-native beetle that’s destroying hundreds of
thousands of ash trees in the Great Lakes region. The Great Lakes Radio Consortium’s
Erin Toner reports:

The Emerald Ash Borer is native to Asia, and probably made its way to the United States
through wood packing materials. Therese Poland is an entomologist with the
USDA. She says so far, the beetles have destroyed 100 thousand ash trees in southeastern
Michigan and southern Ontario.

“We think it’s been here for at least five years and even with some of the other exotic
beetles that have been discovered in recent years, when they were first discovered they
weren’t as widespread as this.”

Poland says there’s a quarantine over the infested areas to keep the beetles from moving
to new areas. Officials are inspecting nurseries to make sure they’re not selling infested
trees. They’re also checking whether tree care companies are disposing of trees properly.
But officials admit they probably won’t be able to stop people who unknowingly transport
infested firewood or yard waste.

For the Great Lakes Radio Consortium, I’m Erin Toner.

GAUGING MANKIND’S ECOLOGICAL FOOTPRINT

In the wake of the World Summit on Sustainable Development in Johannesburg, South Africa, there’s been a lot of talk about how to balance human needs with the health of the planet. Ecologists have been trying to measure the impact of humans on the environment for a number of years, with some sobering results. The Great Lakes Radio Consortium’s Daniel Grossman went to the New York Botanical Garden recently to gauge mankind’s ecological footprint:

Transcript

In the wake of the World Summit on Sustainable Development in Johannesburg, South
Africa, there’s been a lot of talk about how to balance human needs with the health of the
planet. Ecologists have been trying to measure the impact of humans on the environment
for a number of years, with some sobering results. The Great Lake Radio Consortium’s Daniel Grossman went to the New
York Botanical Garden recently to gauge mankind’s ecological footprint.

[Rain forest sounds, misters, tinkling of water, rain falling on leaves]

To get a good sense of the impact humans are having on earth, you could travel for weeks
on intercontinental plane flights, river boats and desert jeeps. Or, as Columbia University
biologist, Stuart Pimm suggested, visit a botanical garden. There, under the glass and
ironwork of a conservatory, Pimm says you can see a resource that humans are
over-using – Earth’s most important resource, its plant-life.

“We’re sitting in the rain forest here at the New York Botanical Society. And it’s a riot of
green.”

Professor Pimm says here beneath the misters in the Tropical Rain Forest Gallery is a
good place to start a whirlwind tour of Earth’s greenery. The air is heavy with moisture
and sweet-smelling.

“Rain forests are some of the most productive parts of the planet. They grow extremely
quickly and they are therefore generating a lot of biological production.”

What Pimm calls biological production most of us know as plant growth. Biologists say
all this green growth in tropical forests and elsewhere on Earth is the foundation upon
which all life rests.

“Everything in our lives is dependent upon biological productivity – everything that we
eat, everything that our domestic animals eat.”

And everything that every other animal eats as well. In a recent book, Pimm painstakingly
tallies up how much biological productivity we use. He starts with the rain forest. In the
last 50 years, loggers and settlers have cut down 3 million square miles of lush tropical
forests. Much was cut down for subsistence agriculture, a purpose Pimm says it serves
poorly.

“Although the tropical forest looks rich and productive, it is a very special place. And
when you chop that forest down the areas that replace it often become very, very much
less productive.”

[Sound of walking around conservatory]

Pimm speaks of the toll on greenery of cities and roads and of land converted to farming
in temperate regions such as the U.S. Midwest. Then, trekking along the botanical
garden’s gravel paths, he leaves behind the tropical mists and steps into the dry heat of a
Southwestern desert. Deserts and other dry lands are not very productive, but they
account for a substantial fraction of Earth’s land surface. Most of it is grazed by flocks of
sheep, goats, camels and cattle, often causing severe damage to vegetation. When these
uses are added to the other impacts of humanity on earth’s bounty, the results are
surprisingly large.

“What silence has shown is that we are taking 2/5ths of the biological production on land,
a third from the oceans. And that of the world’s fresh water supply, we’re taking half.”

[Fade out sound of conservatory. Fade up sound of Texas frogs.]

[Sound of plane engines]

Frogs and toads croak out a spring mating ritual in a concrete drainage ditch. Nearby, a
pilot practices maneuvers in a small plane occasionally drowning out the amphibian
serenade. Living in culverts, sharing the night with droning engines, these wild animals
are never completely free of human influences. From his Stanford University office,
Professor Peter Vitousek says wherever you look, the din of human activities is
interrupting and crowding out other species. Vitousek made one of the first attempts to
tally the impact of people on plant productivity in 1985.

[Frogs fade out in time for Vitousek’s act]

“The message to me was that we are already having a huge impact on all the other species
because of our use of the production of Earth and the land surface of Earth. That’s not
something that our models predict for some time in the future or something that we’re
guessing at on the basis of fairly weak information. It’s something that we’re clearly
doing now. That’s already happening.”

Many ecologists say this conclusion is beyond doubt. What they can’t say is whether
human domination of so much of nature’s output is good or bad. University of Minnesota
Professor David Tilman says as a member of the human race himself, he appreciates the
comforts in clothing, shelter and food our lifestyles buy us. And he acknowledges that the
survival of our own species is probably not imperiled – at least for the moment – by the
destruction of others. Still, he wonders if someday we’ll regret today’s resource intensive
practices.

“I think the more relevant question to me is, ‘Are we doing this wisely?’ ‘Are we wisely
appropriating the resources of the world?’ So, my concern is that we live in a balanced
way – a way that is sustainable through generations – that we leave our children and
grandchildren the same kind of world that we have.”

An expert on the impacts of agriculture, Tilman says we’re using up more resources than
can be replaced. He says if we don’t grapple with these important issues now, by the time
the human population reaches eight to ten billion or so people later this century, it might
be too difficult for us to do enough to save the planet’s life as we know it today.

For the Great Lakes Radio Consortium, I’m Daniel Grossman.

Bringing the Farm to the City

There’s a new kind of farmer being trained… city farmers. The Great Lakes Radio Consortium’s Ben Calhoun has the story of someone who has dedicated his life to training them:

Transcript

There’s a new kind of farmer being trained…city farmers. The Great Lakes Radio Consortium’s Ben Calhoun has
the story of someone who has dedicated his life to training them.

Will Allen has been farming all his life. But ten years ago, he decided he wanted to do
something different. So he started ‘Growing Power.’

You’ll find Growing Power’s Farm on a busy street on the northside of Milwaukee. It’s in
the middle of a row of houses and for a farm its pretty small.

Most days you’ll also find Will Allen there. Today, Allen’s giving a tour of the place. He
leads the group through Growing Power’s four green houses. There are rows of herbs,
eggplants, compost heaps, and boxes filled with worms.

“And where do you set the worms?”

“The worms, we started out with 35 pounds of worms some five years ago. Now we
have millions of worms.”

“I see.”

There’s a lot to see here.

Allen pulls together a lot of pieces to make his organization work.

Growing Power has been finding people to start urban farms for more than ten years –
something Allen says is actually harder than most people think, because he says farming
is harder than most people think.

“And when I sit down with kids’ groups I tell ’em, I say, ‘ Look at my hands. If you guys
are gonna do this work, your hands are gonna look like mine, if you’re truly gonna do it.’
I’m not talking about going into a class and growing a bean in a cup. I say, ‘You’re
gonna get hot, you’re gonna get sweaty, you’re gonna get dirty, you’re going to get
frustrated sometimes.’ But I say when you grow something, it’s gonna take all that pain
away.”

Allen’s found a lot of people who want to do that type of work.

Farming projects launched by Growing Power are scattered across the Midwest.

About 80 miles southwest of Chicago is the kind of place that Allen builds – it’s called
‘Growing Home.’ Growing Home is a farming project started by Chicago’s Coalition for
the Homeless. The Coalition buses homeless people here to grow corn, beans, and
greens.

Here Milton Marks sweats as he pulls black-eyed pea plants out of the dirt. Marks used
to be an auto mechanic. And he came to the project through a city job program. Marks
says it took a while to get used to working here on a farm.

“You know, at first it put me in mind of that picture, ‘Children of the Corn.’ (laughs)
So uh, I was kinda careful when I went up in the corn field – you know what I’m saying?
Yeah, I was kinda careful. But it was interesting and I liked the concept.”

Marks isn’t working alone, and just a few bean rows over, Ron Carter is stomping a
pitchfork into the ground.

Ron became involved through a homeless shelter in Chicago. He says he’s found a new
niche for himself working here on the farm.

“I love it, I love this type of work. You know, but at first, not in my wildest dreams.
Thought that I would be interested in this type of work. It’s been an overwhelming
feeling. It’s been really, really overwhelming.”

Carter’s spent his whole life in Chicago. He says the people he knows in the city, they
just don’t farm.

But in Chicago’s Southside Woodlawn neighborhood there’s another project actually
bringing farming into the city. Right in the middle of the residential neighborhood is
what looks like a home garden – maybe 50 feet by 60 feet. It’s filled with vegetables.

Carol Hughes started this space. As we walk around the plot of plants, she describes
what she thinks is already making her project a success.

“There’s a certain serenity about being in this space. Can’t you feel it? You know, even
though you’re here and there are cars swishing by on either side of us, and other elements
of the community are out (laughs), it’s just, there’s a serenity here, there’s a quiet here,
there’s the greenery. And I love seeing that light, I love seeing things grow.”

Hughes says right now most of the people working on her project are kids. But she says
the farm is getting lots of interest from all parts of her community.

Will Allen says that’s the kind of excitement that makes a project a success. He also
says it’s something that keeps him going.

“I see it happen, every year, year after year. But to see somebody else’s face . . . ‘ I can’t
believe I grew these peppers, or tomatoes, or corn.’ You know, that’s a beautiful thing.
That’s another one of the things that keeps me doing this.”

Allen says Carol Hughes’ project will be four times bigger next year than it is this year.
He says they’ll work to purify the soil so they can use all their land. All together,
Growing Power will continue working with about 35 projects starting up throughout the
Midwest. And they say they expect five more to be up and running by next season.

For the Great Lakes Radio Consortium, I’m Ben Calhoun.

Earthworms Alter Forest Ecology

Most of us think of earthworms as beneficial creatures. Gardeners are always happy to spot a worm in the flowerbed because they add fertilizer to the soil. Many anglers say they’re the best thing for catching fish. But scientists are beginning to learn worms aren’t so friendly to Great Lakes forests. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:

Transcript

Most of us think of earthworms as beneficial creatures. Gardeners are always happy to spot a
worm in the flowerbed because they add fertilizer to the soil. And many anglers say they’re the
best thing for catching fish. But scientists are beginning to learn worms aren’t so friendly to
Great Lakes forests. The Great Lakes Radio Consortium’s Stephanie Hemphill reports.

(fade up Girl Scouts)

This Girl Scout troop is learning about worms. Judy Gibbs is a naturalist at the Hartley Nature
Center in Duluth. She shows the girls how to coax worms out of the soil. They pour water laced
with powdered mustard into the worms’ burrows.

It irritates the worms and they come squiggling up by the hundreds.

“Pour it in. Wait a minute. Here it comes. It doesn’t like the mustard and it comes right up.
Look at this one (laughter). oh, there’s another one. Look at it go!” (shrieks)

On their walk through the woods, the girls look for dead leaves. There aren’t many. Judy Gibbs
explains why.

“Here’s a leaf stem that’s being pulled into this hole. Who’s doing this? Ants! No. Worms.
There’s big night crawlers. You know what a night crawler is? They grow straight down into the
ground, and they come up at night and pull leaves down into their burrows. And they eat the leaf
right off. That’s why we’re not finding any leaves.”

Worms eating leaves might seem natural, but it turns out these worms aren’t native to these
woods. The last glacier buried most of what is now the Great Lakes region. When it melted,
plants and animals returned to create a community of maples, pines, songbirds, and tender plants
growing on the forest floor, like trillium…but not earthworms.

Cindy Hale is a biologist who studies the native wildflowers that grow in northern hardwood
forests. She loves the spring bloomers that take root in the spongy layer of decaying leaves on
the forest floor. Trillium, bloodroot, solomon’s seal.

Hale says many of these plants are disappearing.

“Sites that forty years ago were carpets of trillium have been slowly over the last two decades
declining to almost nothing, and people were scratching their heads, trying to figure out just
what’s going on.”

Earthworm populations are thickest close to cities. But Hale says people bring worms with them
when they come to the woods.

At first, settlers carried them in, along with the animals and plants they brought from Europe or
the east coast. These days, worms are spread by people who drive in the woods – loggers, ATV
riders…

“But in particular, fishing bait is a huge way that worms get moved around in our region.
Because there’s so many lakes and so much fishing.”

Hale and her colleagues set up test plots along an advancing line of worms in the Chippewa
National Forest in central Minnesota. The worms crawl about three yards further into the forest
each year. Hale is studying how the soil and the plants have changed as the worms advance.

Worms eat the decaying leaves on the forest floor. They mix that organic matter into the mineral
soil beneath it. And in time, they can use up all the organic matter and leave only mineral soil
behind.

That means the plants that have evolved to take root in the leaves on top of the soil have lost their
home.

Hale says these changes could affect every plant and animal that lives in the woods. She says,
for instance, even birds have declined by nearly 50% in the last fourteen years.

“Because ovenbirds nest in that forest floor, so if you lose the forest floor, then you may well
affect ground-nesting birds such as that. So when you start thinking about it, the potential
ramifications across the ecosystem get really wild.”

Hale says one of the big challenges in studying this problem is that there’s been very little basic
research – like how many worms are there are and where.

To gather more information and to get more people involved, Hale created a web-based learning
program. She’s asking teachers from around the country to have their classes do worm counts
and other research. Hale plans to add their data to the web page.

In Minnesota, the Department of Natural Resources is working with interest groups to try to slow
the spread of worms. Next year’s fishing regulations will include instructions not to dump your
worms at the end of a day of fishing.

For the Great Lakes Radio Consortium, I’m Stephanie Hemphill in Duluth.

Midwest Adds to Gulf’s Dead Zone

A recent study from the Louisiana Universities Marine Consortium shows the dead zone in the Gulf of Mexico is getting bigger. The Great Lakes Radio Consortium’s Jonathan Ahl reports that pollution from the Midwest may be to blame:

Transcript

The 85-hundred square mile area suffers from hypoxia. That’s when the levels of dissolved oxygen fall low enough to kill off most fish and plants. Many scientists believe nitrogen coming from Midwest farms and wastewater plants that travel down the Mississippi River are responsible. Forrest Peterson is a spokesperson with the Minnesota Pollution Control Agency. He says Midwestern states are aware of the problem, and are trying to fix it:

“Things like providing buffer strips and projects to retain some of the water’s nutrient management, things like that. So there are a whole array of things that can be done and that are being done, it just takes some time to see that effect.”

Peterson says the federal government has set the goal to reduce the zone to two thousand square miles and reduce nitrogen levels in the Mississippi River by 30 percent by 2015. For the Great Lakes Radio Consortium, I’m Jonathan Ahl.