The Future of Corn

  • Scientists say this research could allow us to breed new corn varieties faster than ever before. (Photo courtesy of the Library of Congress)

You might think you know corn –
as in corn tortillas, corn-flakes,
corn-bread and so on. But do you
really know corn? Like, did you
know that our last harvest could
be one of our biggest, or that most
American corn is genetically modified?
Shawn Allee reports experts
want us to get re-acquainted with
our biggest crop because we need
to make huge decisions about its
future:

Transcript

You might think you know corn –
as in corn tortillas, corn-flakes,
corn-bread and so on. But do you
really know corn? Like, did you
know that our last harvest could
be one of our biggest, or that most
American corn is genetically modified?
Shawn Allee reports experts
want us to get re-acquainted with
our biggest crop because we need
to make huge decisions about its
future:

Virginia Walbot researches corn genetics at Stanford University, and recently she got news that didn’t just make her day – it kinda made her decade. Walbot says scientists just finished sequencing genes of an important corn genome.

“The genes are like the words in different languages and what you need is a dictionary that lists all those words, and that dictionary for us, is the genome sequence.“

Walbot says this research could allow us to breed new corn varieties faster than ever before. That’s a big deal because even though we benefit from corn we have now, we could make it better. For example, corn creates environmental problems – take corn fertilizer.

“Of course, adding fertilizer really boosts a lot of yield, but the downstream effects aren’t really great. So, there’s runoff from farms that contaminates the water supply. Making corn as efficient as possible and just giving enough fertilizer to sustain yields, those would be fantastic goals.“

Now, most corn researchers want to meet environmental goals, but there’s a question science alone can’t answer – what kinds of corn should we grow or improve?

Kinds of corn? Maybe you’re thinkin’ “corn chips” versus “popcorn” but there’re bigger differences. We eat sweet corn – most corn’s starchy industrial stuff.

“I think that’s one thing consumers get confused about. Today, only one percent of corn production goes into sweet corn.“

That’s Pam Johnson. She’s with the National Corn Growers Association. Johnson says about half our corn goes to animal feed, then we eat the meat or dairy products from that.

But a lot goes to industrial products, too. Ethanol uses more than a third of the corn in the American corn market.

Johnson says corn farmers want scientists to create specialty industrial corn that can fetch premium prices – like corn just for ethanol or corn just for renewable, corn-based plastic.

“You know, we’ve always said for a long time that anything that’s made from petroleum might be able to be made from a renewable and I think that’s an exciting thing to ponder as a corn grower.“

Johnson predicts new genetic science will also improve corn we eat directly, but is that likely to happen?

“I have my doubts.“

That’s Rainer Bussman. He’s with The Missouri Botanical Garden, and he studies how people use plants.

“Feeding people is less economic incentive than producing large amounts of corn for animal feed or biofuels, so I do have my doubts there.“

Bussman says it’s a shame food varieties of corn will get less attention from genetic research. He says he worries about food security. He figures if we grow more types of food corn we’ll be better protected from crop diseases.

It’s also a matter of taste, though. Bussman’s traveled the world and tasted corn we don’t grow here – like a blue kind in South America.

“They would call that maize murada which means purple corn and that is mostly used to produce a very refreshing, sweet beverage, so you get this get this deeply purple, sugary drink. It’s all natural, no sugar added.“

Bussman says Native Americans and the earliest settlers produced hundreds of varieties of corn for all kinds of food dishes – corn for just pudding, just bread, just porridge, and so on. They created this food diversity without modern genetic science, but we do have it.

Bussman asks why should our science just improve animal feed, ethanol, and bio-plastic? Why not make food our priority, too?

For The Environment Report, I’m Shawn Allee.

Related Links

Keeping an Eye on Fish Farming

  • Right now, there are no federal laws regulating offshore fish farming. (Photo by Randolph Fermer, courtesy of the National Biological Information Infrastructure)

Proposed legislation would put
in place the most sweeping
regulations yet on ocean
aquaculture – or offshore fish
farming. Samara Freemark tells us why people
think regulations matter:

Transcript

Proposed legislation would put
in place the most sweeping
regulations yet on ocean
aquaculture – or offshore fish
farming. Samara Freemark tells us why people
think regulations matter:

Critics of aquaculture say the practice can spread disease, introduce invasive species, and pollute the environment.
The Ocean Conservancy’s George Leonard says that’s a problem.

“In the absence of an overarching framework, aquaculture continues to move forward kind of in fits and starts here in the US. And we think if it proceeds that way, many of the environmental concerns will kind of fall through the cracks.”

Legislation introduced last week in Congress could change that. The bill would require fish farmers to apply for federal permits before setting up shop. Those permits would set standards to protect ocean ecosystems.

The bill would also provide money to research how aquaculture is impacting the environment.

For The Environment Report, I’m Samara Freemark.

Related Links

Growing Upward, Not Outward

  • Valcent's vertical farm has hundreds of clear plastic sheets holding pockets of plants. These hang from moving racks. (Photo courtesy of Valcent)

It takes a lot of land to grow
crops. There are concerns there won’t
be enough land to grow all the needed
food for the rapidly growing population.
That’s why some researchers and business
people are creating what they call
vertical farms. Julie Grant reports:

Transcript

It takes a lot of land to grow
crops. There are concerns there won’t
be enough land to grow all the needed
food for the rapidly growing population.
That’s why some researchers and business
people are creating what they call
vertical farms. Julie Grant reports:

On the outside, it looks like a big green house. Inside,
there’s an overhead conveyer system.

It looks kind of like a dry cleaner. Hanging from the moving
racks are hundreds of clear plastic sheets. Each has rows of
pockets. In each pocket, there’s a vegetable plant.

The conveyor moves them around to make sure the plants
get enough light, nutrients and water.

Glen Kertz is president of Valcent Products, which is building
its first commercial-scale vertical farm in Alberta, Canada –
where it can be expensive to truck in fresh produce.

“A couple of hundred years ago, they couldn’t get fresh
lettuce in the dead of winter. But do they want it today?
Yes.”

Kertz and others think we could vertical farm in cities in
skyscrapers.

But Kurtz says the farm’s heat, lighting and conveyor system
all run on fossil fuels and he wants to switch to renewable
energy.

For The Environment Report, I’m Julie Grant.

Related Links

Animal-Powered Farming

  • Dan Macon, owner of Flying Mule Farm, and his mule, Frisbee (Photo by Tamara Keith)

With fuel prices through the roof,
many people are changing their routines to
save money. Tamara Keith brings
us this story of a farmer who’s abandoned
his tractor for something much more fuel
efficient:

Transcript

With fuel prices through the roof,
many people are changing their routines to
save money. Tamara Keith brings
us this story of a farmer who’s abandoned
his tractor for something much more fuel
efficient:

“Step up.” (kissing noises)

Meet Dan Macon and his mule Frisbee.

“Frisbee is a 7 year old mule and she was born here at our place. And she got
her name because I promised my oldest daughter, who was then 3, that if she got
up with me when the mule was born she could pick the name.”

“Step up. Good girl.”

On this day Macon and Frisbee are plowing to prepare a patch of land to plant
for the fall. Macon’s Flying Mule Farm is in the California foothill town of
Auburn. And he says it’s 100% animal powered.

“We have a sign now in our farmer’s market stall that says mule powered
vegetables. We use no pesticides, no synthetic fertilizers and no petroleum in
producing our vegetables. And we joke with them that we haven’t harmed any
tractors in producing their goodies.”

He sells his squash, kale, potatoes and other produce at two local farmer’s
markets. He also supplies restaurants in nearby resort towns.

At this point Macon is only farming a quarter of an acre, but hopes to expand
soon. He holds a pair of leather reins as he follows Frisbee in circles around
the small field. He directs her movements with vocal cues, kissing sounds and
pressure applied to the reins. And it seems to work, some of the time.

Tamara Keith: “Seems like it could be a matter of debate as to who’s in
charge.”

Dan Macon: (laughs) “Well as I tell people who have seen pictures of us
doing it, the mule’s the one with the long ears and the guy in the hat is the
jackass.”

Macon has been farming for 7 years and, until this year, he used a gas and
diesel powered tractors. He made the switch for philosophical reasons rather
than economic ones, but it’s penciling out financially too.

“And then diesel went to $5 a gallon and it seemed like a really good
decision.”

And Macon isn’t the only farmer doing this. Animal powered farming,
particularly with horses, is growing in popularity nationwide.

Lynn Miller is editor of the Small Farmer’s Journal. He says 400,000 people
are using animals to farm, and only half of them are Amish.

“I’m predicting within two to three years an additional quarter of a million
people will join the ranks of those who choose animal powered, not as a
throwback, not a return to a nostalgic past, but because it is a practical and
viable option for the future.”

Macon uses organic farming practices, but Frisbee kind of fertilizes the soil as
she goes – if you know what I mean. So, his produce can’t be certified
organic. Macon says he isn’t concerned about his lack of certification.

“I think knowing your farmer is far more important to food safety than any
regulatory program. And if you know your farmer, and your farmer stands
behind what he or she is producing for you, then you’re going to be insured of a
safe product, and that’s how our relationship works with our customers.”

There are other advantages to farming with a mule, says Macon. He’s not
much of a mechanic, so when his tractor broke down in the past he’d have to
call someone to repair it. Now if his source of traction has a problem, he can
just call his wife. She’s a large animal veterinarian.

For The Environment Report, I’m Tamara Keith.

Related Links

Ten Threats: Coastal Development Pressures

  • Construction along the shorelines can put a strain on natural systems. (Photo by Carole Swinehart/Michigan Sea Grant Extension)

One of the more subtle but relentless threats to the Great Lakes is
coastal development. Condos, ever larger and nicer beach homes
and buildings and parking lots in the watershed all have an
impact on the Lakes. As the population grows and the suburban
lifestyle keeps spreading, the health of the lakes is compromised
in countless tiny ways. Reporter Peter Payette finds those tiny
ways all add up:

Transcript

We’re continuing our look at ‘Ten Threats to the Great Lakes.’
Lester Graham is our guide through the series. He says the
experts who were surveyed to determine the threats say rapid
development is among the problems affecting the lakes:


One of the more subtle but relentless threats to the Great Lakes is
coastal development. Condos, ever larger and nicer beach homes
and buildings and parking lots in the watershed all have an
impact on the Lakes. As the population grows and the suburban
lifestyle keeps spreading, the health of the lakes is compromised
in countless tiny ways. Reporter Peter Payette finds those tiny
ways all add up:


Greg Reisig is standing at the edge of a 20-acre construction site
just down the street from the shore Lake Michigan.


Below him is a man-made pond a few hundred feet long. It was a
dry summer around here, but the pond is full.


In fact, Reisig says the water level is always the same.


“And that indicates there’s a lot of ground water flowing
here…there’s a lot of water in this pond and you can see what
was a whole big wetland complex…there’s a lot of cedar and red
osier dogwood…all the wetland plants.”


There are no wetlands here now.


The site in northern Michigan was excavated for homes a few
years ago.


But now the Army Corps of Engineers says the wetlands that
were here need to be restored. A few acres likely will be
restored. But Reisig says almost the whole site was wetlands
once. He expects it will soon be a subdivision with not much
more than a drainage ditch connecting it to Lake Michigan.


“What will that do to the amount of flow of water going into the
bay? Because of hard road surfaces, hard driveways, roofs,
buildings and supposedly fertilized lawns. What will happen to
the water and how will that increase the flow to the bay?”


The developer’s attorney says this is nonsense. Matt Vermetten
says this land was heavily farmed and mined for clay.


“There are pockets of quote unquote wetland and those are there
because of excavation for clay. So is this a wetland complex of
the nature we speak of when we typically speak of such a thing? I
think not.”


Disputes like this are becoming more common around the Great
Lakes. John Nelson is the baykeeper with the Grand Traverse
Bay Watershed Center. The bay off Lake Michigan and attracts a
lot of people. But Nelson says development doesn’t have to be a
problem.


He says the problem is people don’t think about the ecology of
the lakes. For example, east of Traverse City, Michigan, resorts
dominate the coastline. Along the beach, thick stands of sedges
and rushes extend out a few hundred feet. But the sections of
dark green marsh alternate with stretches of clean sand and white
lawn chairs.


(birds calling on beach)


Nelson grew up here and says this part of the lake was never a
sugar sand beach.


“They’ve located in a coastal marsh. Instead of celebrating and
dealing with that they’ve chosen to see it as they would like to
have it and then change it.”


The impacts of the changes are cumulative. Fish and wildlife
habitat is fragmented. The natural filtering properties of the
wetlands are gone.


So every time the city gets a rain shower all the dust and grime
and pollution are washed right into the lake.


Census data show people are leaving many of the Great Lakes
coastal cities and spreading out along the coastline. But it’s not
clear how local governments should plan for the growth.


Mike Klepinger studies land use planning for the Michigan Sea
Grant program. He says it’s hard to make direct connections
between a healthy lake and particular land uses.


“We are getting more planning along the shoreline than we had
thirty years ago in the state. The number of counties and number
of townships that have a plan has gone up, for example. But we
don’t know whether those plans are really doing any good.”


And it’s hard to implement good planning on a broad basis. In
any area, dozens of different local governments might have
independent control over development.


Multiply that by the number cities, townships and counties along
the coasts of the Great Lakes… and it’s hard to see how it all can
be managed so that enough coastline habitat is preserved.


For the GLRC, I’m Peter Payette.

Related Links

New Law Requires Seafood Labeling

  • A new law states that labels on the majority of seafood will need to list the country of origin. Some are worried about the amount of time and money this will cost. (Photo by Ivan Pok)

Seafood lovers will soon know where their dinner was caught. A new U.S. law requires most seafood to have a label that names the country it came from. The Great Lakes Radio Consortium’s Peter Payette reports:

Transcript

Seafood lovers will now know where their dinner was caught. A new U.S. law requires most seafood to have a label that names the country it came from. The Great Lakes Radio Consortium’s Peter Payette reports:


The label will tell the country of origin and whether the seafood was farmed or wild. Processed foods like canned tuna or fishsticks will be exempt and smaller stores won’t be required to label their food.


The new law is supported by some in the fishing industry who think shoppers would rather buy seafood caught in U.S. waters. But other suppliers and retailers complain the law is forced marketing and has nothing to do with food safety.


Linda Candler is with the National Fisheries Institute. She says it will cost billions of dollars for the industry to keep track of all the necessary information.


“We’ve already heard from several retailers that, in order to keep their record keeping to a manageable level, they will cut the number of their suppliers. Meaning, they’ll have less flexibility in price.”


The law is now in effect. But the U.S. Department of Agriculture won’t enforce it for six months. They say that will give the industry some time to adjust to new requirements.


For the Great Lakes Radio Consortium, I’m Peter Payette.

Related Links