Weather Modification Making It Rain

  • The cloud seeding generator sprays heated silver iodide into the air-which then acts like a magnet, attaching to ice particles until snow forms.(Photo courtesy of Christina Aanestad)

We need a lot of water. We use it to grow food, wash our cars and even make electricity at hydro-dams. But in some areas there might not be enough water. The federal government estimates places in 36 states might experience drought conditions by 2013.

So, scientists and power companies are looking at manipulating the weather to create more water. And, as Christina Aanestad reports the practice, called weather modification, is more common than you might think:

Transcript

We need a lot of water. We use it to grow food, wash our cars and even make electricity at hydro-dams. But in some areas there might not be enough water. The federal government estimates places in 36 states might experience drought conditions by 2013.

So, scientists and power companies are looking at manipulating the weather to create more water. And, as Christina Aanestad reports the practice, called weather modification, is more common than you might think.

“A mile and a half to go–we should see the cloud seeder.”

I’m traveling through the rugged terrain of Burney Falls, in northern California with Paul Moreno. He’s a spokesperson for Pacific Gas and Electric, one of the nation’s largest power companies and it wants to modify the weather in this remote area- it’s a process called cloud seeding.

“There it is……”

Energy companies, water districts and the federal government have conducted weather modification since the 1950’s. Today, it occurs in about a dozen states in the US-mostly the West and Midwest.

Moreno points to a large metal box.

“were’ looking at a cloud seeding generator that is off the ground about 12 feet on a steel platform and inside the cabinet is a tank that contains the silver iodide solution. The silver iodide solution is sprayed kind of atomized, like a perfume atomizer.”

This is how it works: the generator sprays heated silver iodide into the air-which then acts like a magnet, attaching to ice particles until snow forms. The purpose? More snow means more water and, more water means more power for Pacific Gas and Electric’s hydropower project.

At least… that’s the theory.

“It’s never been proven to actually work.”

Matt Ryan is a 25-year weather consultant.

“The idea that you can drug the sky into dropping more rain onto you is part of the problem in and of itself. Silver iodide which is the drug of choice throughout the cloud-seeding industry is a class-C toxic non-soluble inorganic chemical. When they say that it is Class C-You can’t flush this down the drain…it’s toxic.”

But not everyone thinks it’s a serious threat. Brant Foote heads the Research Applications Lab at the National Center for Atmospheric Research, in Colorado. He’s studied cloud seeding for decades.

“In general what we’ve shown is that health hazards of cloud seeding is negligible.”

But, Foote seems less certain about whether cloud seeding actually works.

“It’s been a tough nut to crack. There have been a lot of attempts to evaluate cloud seeding and more often than not with inclusive results, rather than with either negative or positive.”

Whether it works or not is beside the point to some. They just don’t like the idea. Mark Franco is headman for the Winnemum Wintu Tribe in Northern California. He doesn’t think people should be playing around with nature. He says instead of trying to artificially make precipitation, maybe we should be putting more effort into conserving water.

“One of the things people forget: when you’re running out of water, don’t use as much. Use water efficiently, people need take responsibility for the usage and waste of water.”

But, despite concerns about whether cloud seeding is a good idea… or whether it even works… some states support the science with millions of taxpayer dollars. And, utilities like Pacific Gas and Electric spend millions of ratepayer dollars on cloud seeding projects in the US.

For The Environment Report, I’m Christina Aanestad.

Related Links

Study: Ethanol Sucking Up Water

  • It can take a lot of water to make ethanol. (Photo courtesy of the National Renewable Energy Laboratory)

The ethanol industry and the government
want more ethanol to be produced. They
say the homegrown biofuel is a good way
to move away from foreign oil. But a new
government report says many ethanol
refineries are putting a strain on another
natural resource – water. Mark Brush has
more:

Transcript

The ethanol industry and the government
want more ethanol to be produced. They
say the homegrown biofuel is a good way
to move away from foreign oil. But a new
government report says many ethanol
refineries are putting a strain on another
natural resource – water. Mark Brush has
more:

When you fuel up at the pump, chances are you’re putting ethanol into your car. Nearly half of the gasoline in the U.S. is blended with ethanol. And that’s likely to increase as they build more refineries.

But the Government Accountability Office says these ethanol refineries should consider local water resources before they build. It can take a lot of water to make ethanol.

Anu Mittel follows water resource issues for the Government Accountability Office:

“Many of them are being built in areas where they are relying on groundwater aquifers for their water supply and that could have a devastating effect on the local community that is also relying on that same water source for all of its other needs.”

Refineries built in those areas often rely on irrigated corn to make ethanol. So it means drawing millions of gallons of water just to make the ethanol at the refinery.

And millions of gallons more to grown the corn.

For The Environment Report, I’m Mark Brush.

Related Links

Keeping the Breadbasket From Drying Up

  • Bob Price is one of many farmers in Southwestern Kansas who signed up for a government program that pays farmers for their water rights and put portions of their land back into grass. (Photo by Devin Browne)

Right now, America’s Bread Basket
relies on an aquifer that’s nearly
drained. And, many say, it will dry
up if farmers keep pumping water
from it at the current rate. Devin
Browne reports the government plans
to pay farmers as one way to get them
to cut water use:

Transcript

Right now, America’s Bread Basket
relies on an aquifer that’s nearly
drained. And, many say, it will dry
up if farmers keep pumping water
from it at the current rate. Devin
Browne reports the government plans
to pay farmers as one way to get them
to cut water use:

Bob Price is every bit the Heartland farmer. He’s dressed head-to-toe in denim with a belt
buckle the size of a small plate. Just like his neighbors, he grows thirsty plants like corn
and alfalfa. But, the land is so dry and so sandy that many agricultural experts think it’s
not suitable for farming.

When Price moved to Southwestern Kansas in 1973, it didn’t seem to matter that the land
was so dry. In his pick-up, on the way to his farm, he tells me that it was the beginning
of an irrigation boom.

“Out here everyone was getting up early, going to work, and all along Highway 50 it was
irrigation pumps, irrigation pipe, engines; this was like a frontier back then.”

At that time, the government heavily subsidized the costs of irrigation. The farmers were
getting an almost immediate return. Their land appreciated almost overnight once
irrigation was established.

Farmers began to pump water – and lots of it – from one of the world’s largest
underground water supplies, the Ogallala Aquifer. They pumped two-feet of water for
every acre they farmed, right onto their crops.

“Meanwhile, the water table is declining and the water that we’re pumping is coming
from farther and farther down and, even with the same energy cost, it cost more to suck
water out of the ground from 500 feet.”

Last year, it cost Price more than $200,000 for the electricity to run the pumps to irrigate
about 900 acres of land. It’s one of the reasons he started to consider other options.

At the same time, the government, on both the state and federal level, started to think of
how to save the water left in the Ogallala Aquifer. Rivers were drying up and several
states in the Plains were suing or being sued for taking more water than they’re allowed.

Several states initiated water conservation programs as a response; Kansas was the first to
do it without the threat of a lawsuit. The program started in 2007. The strategy: pay
farmers to permanently retire their water rights.

Price had actually been wanting to take some of his land out of crops anyways. He’s a
prairie chicken enthusiast and he wants to start a guided hunting business. Prairie
chickens need prairie grass.

“So we’re farming one day, and we’re thinking, ‘sure would be nice to get that into
grass,’ but that’s an overwhelmingly expensive proposition.”

It’s not expensive to plant or grow prairie grass. You don’t need any irrigation for either.
But you do need irrigation for a cover crop that the farmers are required to grow for two
years before they can get to the grass. Susan Stover is with the Kansas Water Office.

“If we did not get something re-established there, we could have potentially dust storms
again and sand dunes moving and really big blow-outs.”

Blow-outs like Depression-Era, Dust Bowl blow-outs. So Price has to plant a cover crop
and pat double what he gets from the conservation program just to irrigate it.

Ironically, the government pays him sizeable subsidies to keep other land in corn, which
needs water from the aquifer to grow. So basically, one government program is paying
Price to stop using so much water, while, at the same time, other government programs
are paying him subsidies to grow the crops that need so much water.

Price would actually like more money to put the land back into grass, but if he wants to
lead hunting trips for prairie chickens and he wants prairie grass, there’s only one outfit
willing to pay him anything to plant that grass – the government.

For The Environment Report, I’m Devin Browne.

Related Links

Fighting Over Oil and Water

  • The richest oil shale deposits lie in the Piceance Basin, which runs northwest of the town of Rifle, Colorado. The bands of dark grey along the edge of this snow- capped ridge are oil shale. (Photo by Shawn Allee)

In the future, keeping your gas tank full could make disputes over water in the American
West a lot worse. It’s because energy companies hope to develop the oil shale industry.
Getting oil from shale requires lots of water, and the richest oil shale deposits happen to be
in the dry state of Colorado. Shawn Allee headed there to see why a fight over water and
oil could be in the works:

Transcript

In the future, keeping your gas tank full could make disputes over water in the American
West a lot worse. It’s because energy companies hope to develop the oil shale industry.
Getting oil from shale requires lots of water, and the richest oil shale deposits happen to be
in the dry state of Colorado. Shawn Allee headed there to see why a fight over water and
oil could be in the works:

Oil companies have their eyes on vast oil shale deposits in western Colorado, Utah and
Wyoming.

The federal government says companies could pull 800 billion barrels of oil out of that shale.

That’s about three times the proven oil reserves in Saudi Arabia.

Oil shale’s an impressive resource but it depends on water and there’s not much available
there.

How much would an oil shale industry need?

Shell Oil PR guy Tracy Boyd says the simple answer is that it will likely take his company
three barrels of water to extract one barrel of oil.

It’s because oil shale doesn’t really have oil in it – it’s got something called kerogen.

“You can heat this kerogen up. If you do it really slow, which we do for about 3.5 –
4 years, by putting heaters down in the rock formation, (you) produce a crude-oil
like material but with a little processing this is the first product we get out of it
which basically transportation fuels.”

Heating the ground require loads of electricity from new power plants and generators, and
they’d be cooled by water.

Oil companies are just experimenting with shale right now, but they’re securing rights to
water just in case.

Shell’s latest water claim is on Colorado’s Yampa River.

When Shell filed its court papers – some town governments warned they might fight the
claim.

One of these towns was Parker – a Denver suburb hundreds of miles east of the oil shale
region.

Frank Jaeger runs Parker’s water district.

Jaeger says, like other Colorado cities, Parker plans to expand.

“We know approximately what our numbers are and it will be somewhere in the
neighborhood of 150,000 people. In order to assure 150,000 people for another
150 years from now, I have to be proactive, I have to be at the front of the line for
the next drop of water available in the State of Colorado.”

Oil shale developers and cities across Colorado are set to fight over the water they might
need for the future, but some feel oil companies already have an edge.

“They’re actually one step ahead of the game.”

David Ableson is with Western Resource Advocates, an environmental group.

Ableson says energy companies tried developing oil shale several times in the last century.

They failed, but each time, they bought more water rights – just in case.

Now, they’ve got loads of water rights – and if the industry takes off, they’ll use them.

That could stop cities like Denver and its suburbs from getting water they hoped to have for
new homes and businesses.

Ableson says this isn’t just a Colorado fight, though.

He says some congressmen sell the idea of oil shale as an energy source the whole country
can depend on – even though its future could get tied up in Colorado water courts.

“And so, folks who are looking at this issue who do not live in CO, UT, or WY, need
to understand that when an elected official says, “this can solve our energy woes,”
that it’s actually a far more complicated situation than that and if there are severe
water impacts, that makes it much less likely that you could develop that
resource.”

The energy industry claims the concern over water is overblown – they say they just might
not need all that much water.

Ableson says that’s only true if oil shale fails. But if it succeeds, and we fill up on oil shale
gasoline – he predicts some towns or industries in the West will be left dry.

For The Environment Report, I’m Shawn Allee.

Related Links

Learning to Live With Less Water

  • Ellen Peterson has lived in Florida for many years and this is the first year her well went dry. (Photo by Arthur Cooper)

Droughts are nothing new for the Western US.
But lately, even some parts of the country
surrounded by water have gotten a taste of
droughts. Rebecca Williams reports as our
population grows, some experts say we’re going
to have to learn to live with less water:

Transcript

Droughts are nothing new for the Western US.
But lately, even some parts of the country
surrounded by water have gotten a taste of
droughts. Rebecca Williams reports as our
population grows, some experts say we’re going
to have to learn to live with less water:

(sound of birds)

Even in swampy, muggy Florida, people have been running out of water.

“This is the first time the well has ever gone dry.”

Ellen Peterson remembers water gushing out of her artesian well when she’d hook up the hose. These days she’s stuck with rusty water from her shallow well.

(sound of faucet turning on)

“Now if I let that sit it would settle out orange.”

We visited Peterson at the tail end of this year’s dry season. In the weeks since then, Florida’s been pummeled by major thunderstorms. But Florida water managers say it’s too early to know how much the rain will help.

This was the driest dry season Florida’s felt in more than 75 years. And it’s the third year in a row of serious drought. That’s meant some changes for people who live here.

Many cities put rules in place that limit watering lawns to one or two days a week. One woman actually ended up with a warrant out for her arrest after she watered her lawn on the wrong day and didn’t pay the fine.

Some cities in Florida are talking about adding a drought surcharge to bills for people using the most water.

Ellen Peterson says local water managers have even been capping wells in her area. Peterson may be 85 years old, but that didn’t stop her from telling her local official to back off.

“They told me they were going to cap my well and I threatened the guy with his life if he ever came back. (laughs) It hasn’t happened yet.”

So it’s not such an easy sell to get people to cut back on water.

(sound at a lake)

But that’s Gary Ritter’s job. He’s a water manager in the Lake Okeechobee area. It’s a giant lake – 35 miles wide – and it’s nicknamed the liquid heart of the Everglades. The lake level is 2.5 feet below average.

“For water to get to the Everglades it has to come from Lake Okeechobee. Now we have a juggling act as to how we manage this water in the system you know for multiple users for the water supply and for the ecosystem.”

The lake’s the center of a huge tug of war. Farmers and cities need the water, and the lake’s also a big tourist draw. And the Everglades are in major trouble – mostly because the water flow to this fragile area has been cut off by people.

Some experts say these kinds of conflicts are just going to get worse.

Peter Gleick is president of the Pacific Institute. It’s a nonpartisan group that studies water issues.

“Places we didn’t think were vulnerable to water shortages in the past are now increasingly vulnerable. As our population continues to grow and our water supply doesn’t. As more and more people try to share that fixed resource there’s going to be growing competition for water and more natural and manmade drought.”

And he says we just don’t know what’s in store for us as the climate changes because of global warming. We could get a one-two punch.

First, from weird new weather patterns. And second, from more and more people moving into dry areas.

People have expected these kinds of problems for cities in the desert Southwest. But nobody really saw this coming in the Southeast.

Peter Gleick says even if you live in a place surrounded by water now, you shouldn’t expect to always have plenty of it.

For The Environment Report, I’m Rebecca Williams.

Related Links

Report: West Warming Fast

  • The Colorado River in the Eastern end of the Grand Canyon National Park, below Desert View Overlook (Photo courtesy of the National Park Service)

A report from environmentalists concludes the
American West is getting hotter faster than the rest of
the globe. Lester Graham reports:

Transcript

A report from environmentalists concludes the
American West is getting hotter faster than the rest of
the globe. Lester Graham reports:

Now, this report was not peer reviewed, but The Natural Resources Defense Council and the
Rocky Mountain Climate Organization insist the data show it’s gotten hotter in the West
when you compare the last five years to the global average during the last century.

Theo Spencer is with the NRDC. He says water is always important in the West, and
this climate change is causing problems.

“The Colorado River Basin, which provides water for about 30 million people in the West, the temperature over the past 5 years increased 2.2 degrees. So that’s 120% more than the rest of the globe.”

The report says the Colorado is in a record drought – and that affects Denver,
Albuquerque, Las Vegas, Phoenix, Los Angeles and San Diego.

For The Environment Report, this is Lester Graham.

Related Links

Co2 Crops Not Tops

  • Theories that crops, such as the corn in Illinois, will benefit from increases in CO2 might not be as good as predicted. (Photo by Scott Bauer, courtesy of the USDA Agricultural Research Service)

Carbon dioxide emissions from our cars and factories are the number one
cause of global warming. Scientists have long theorized that more of
the gas in the atmosphere could actually help farmers grow bigger
plants. But new research from America’s Breadbasket is challenging
that assumption. David Sommerstein reports:

Transcript

Carbon dioxide emissions from our cars and factories are the number one
cause of global warming. Scientists have long theorized that more of
the gas in the atmosphere could actually help farmers grow bigger
plants. But new research from America’s Breadbasket is challenging
that assumption. David Sommerstein reports:


Lin Warfel’s a fourth generation farmer in east-central Illinois. His
fields are flat and endless, the soil chunky and black and just about
the best in the world. An Interstate highway groans on one side of his
cornfield:


“In my career, early on, there was no Interstate past my farm.”


As traffic increased over the years, Warfel noticed a strange
phenomenon. The crops closer to the Interstate grew bigger than those
further away:


“They respond to the carbon dioxide. They can stay greener longer than
plants out into the field.”


OK… so, here’s a high school biology reminder: carbon dioxide, along
with water and sun, is an ingredient in photosynthesis, which makes
plants grow.


Increasing carbon dioxide in the atmosphere is also the biggest cause
of global warming. So scientists thought, huh, more carbon dioxide in
the atmosphere, bigger crops. They even coined a term: the “carbon
dioxide fertilization effect:”


“The effects of CO2 on crop yields are fairly well-understood.”


The Department of Energy’s Jeff Amthor has studied this stuff since the
1980s:


“We would expect that by the year 2050, that the increase in CO2 alone
would probably increase yields by about 10 to 15% in soybean, wheat and
rice relative to today’s yield, with nothing else changing.”


Other things are changing, like hotter temperatures and more drought.
But the predominant thinking has been that the increased carbon dioxide
will moderate those negative factors, maybe even outweigh them. A
recent study by the American Economic Review concluded U.S. agriculture
profits will grow by more than a billion dollars over the next century,
due to global warming. Most of this is based on experiments done in
controlled, greenhouse conditions, but new research done in real fields
is challenging the assumptions:


“Where you’re standing is what we refer to as our global change
research facility on the south farms of the University of Illinois.”


That’s biologist Steve Long. He runs what’s called the SoyFACE project
at the University of Illinois in Champaign-Urbana. Here, Long can
actually pipe carbon dioxide gas out to the fields, and grow real crops
in an atmosphere of the future.


Long strolls out to one of 16 test plots and stop at a white pipe
sticking out of the ground:


“This is one of the pipes where the carbon dioxide actually comes up
and then it will go out into the field here.”


The carbon dioxide pipes circle a plot about the size of a tennis
court. They release the gas over the crops. Computers monitor the air
to keep the concentrations steady:


“And the current atmospheric concentration of carbon dioxide is about
380 parts per million. We’re raising that to the level which is
expected for the year 2050, which is about 550 parts per million.”


Long has grown the crops of 2050 for 5 years now. His results
shocked him. The plants did grow bigger. They survived longer
into the fall, but the yields were 50% lower than expected. And
pests thrived. The Western corn rootworm, for example, laid
twice as many eggs:


“Japanese beetle, which eats quite a lot of the leaves of soybeans, do
twice as well under these elevated CO2 conditions. They live longer. They
produce many more young. The yield increases we’ve seen could start to be
counteracted by those increased pest problems.”


Long’s results found supporters and critics when published in
Science magazine last summer. Some researchers say extra CO2
could hurt agriculture more than it helps because weeds become more
aggressive.


The Department of Energy’s Jeff Amthor co-wrote a paper challenging the
interpretation of Long’s data. But he agrees more work needs to be
done in real-life conditions:


“The bigger questions that are now before us are the interactions of CO2 with
warming and change in precip, changes in weed communities, changes in
insect communities, changes in disease outbreak. There are a lot more
questions there than there are answers.”


Amthor says what’s at stake is our future food supply.


For The Environment Report, I’m David Sommerstein.

Related Links

Sea Ice Melting Faster Than Predicted

  • Arctic sea ice is melting at a faster rate than the most advanced computer models had projected. (Photo by M. Tsukernik, courtesy of the National Snow and Ice Data Center)

New research shows Arctic sea ice is melting much faster than predicted
by computer models. Rebecca Williams reports the researchers say that
could accelerate the impacts of global warming:

Transcript

New research shows Arctic sea ice is melting much faster than predicted
by computer models. Rebecca Williams reports the researchers say that
could accelerate the impacts of global warming:


Greenhouse gasses trapped in the atmosphere are making the Arctic sea ice
melt. Scientists have been relying on computer models to predict how
fast the ice will melt.


Researchers at the National Snow and Ice Data Center found actual
measurements show the ice melt is happening about 30 years ahead of
what the models predicted.


Julienne Stroeve is the study’s lead author. She says summertime
Arctic sea ice could be gone completely by the first half of this
century:


“I’m definitely concerned that it’s going to happen in the next 30 or
40 years… It’s a huge climate shift for our planet. I think we’re
going to have a much warmer planet than we’re used to seeing.”


Stroeve says it’s not clear how weather patterns might change, but she
says it’s possible the loss of the sea ice could lead to more natural
disasters such as stronger storms and drought.


For the Environment Report, I’m Rebecca Williams.

Related Links

Battle Over the Right to Grow Rice

  • Roger LaBine winnows the wild rice. (Photo by Michael Loukinen, Up North Films)

Since European settlers first came to this country they have had serious conflicts with Native Americans. The GLRC’s Sandy Hausman reports on one modern-day dispute between a Native American tribe and communities in the upper Midwest:

Transcript

Since European settlers first came to this country they have had serious conflicts with
Native Americans. The GLRC’s Sandy Hausman reports on one modern-day dispute
between a Native American tribe and communities in the upper Midwest:


(Sound of Ojibwe music)


The Ojibwe tribe first came to the north woods of Michigan and Wisconsin hundreds of
years ago. They say their migration from the east coast was guided by prophets. Those
prophets told them to keep moving until they came to a place where food grows on the
water. Roger Labine is a spiritual leader with the tribe. He says that food was wild rice:


“This was a gift to us. This is something that is very, very sacred to us. This is very
important, just as our language. This is part of who we are.”


For hundreds of years, wild rice was a staple of the tribe’s diet, but starting in the 1930s,
private construction of hydroelectric dams pushed water levels in rice growing areas up.
High water killed most of the plants and took a toll on wildlife. Bob Evans is a biologist
with the U.S. Forest Service. He says fish, bird and insect populations dropped
dramatically:


“Black tern is a declining, threatened species that is known to use wild rice beds,
Trumpeter swans. They’re a big user of rice beds. Um, just a whole lot of plants and
animals. It’s really a whole ecosystem in itself.”


So in 1995, the tribe, the U.S. Forest Service and several other government agencies
demanded a change. A year later, the federal government ordered dam operators to drop
their maximum water levels by 9 inches. The dam owners appealed that decision, but in
2001 a federal court ruled against them.


That fall, the Ojibwe who live on Lac Vieux
Desert harvested nearly 16 acres of wild rice and this summer, the tribe is tending more than 55 acres.
But the resurgence of rice beds comes at a price. Lower lake levels have left docks in this
boating community high and dry, created muddy shorelines and made long-time residents
and summer boaters angry:


“I used to come here and dock all the time. We picnicked here. I had to walk in 50 feet,
because there wasn’t enough water to float a pontoon, and it’s that way all around the
lake.”


Ken Lacount is president of the Lac Vieux Desert homeowners association. He first
came here in the 1940s and doesn’t see why his cultural traditions should take a backseat
to those of the Ojibwe:


“My grandfather built one of the first resorts. I fished in Rice Bay my entire life. That
was his favorite place to take me.”


Lacount is bitter. He and his neighbors feel powerless to change the situation, since a
federal court has ruled for the Ojibwa. Defenders of that decision say water levels are
especially low because of a prolonged drought in region. When that ends, they predict
lake levels will rise, and homeowners on Lac Vieux Desert will be happier.


(Sound of paddling)


Such conflicts are nothing new. Ron Seeley is a reporter for the Wisconsin State Journal. He’s covered Native American issues for more than 20 years. Paddling through the rice beds, he recalls an earlier battle
over fishing rights. In the late 80s, a court ruled the Ojibwe were entitled by treaty to
spear fish each spring. Local fishermen worried the practice would destroy their industry:


“Sometimes thousands of people would show up at the landings on a spring night. Tribal
members from all over the upper Midwest would come to support the spearers and drum
and chant. The anti-Indian forces were arrested for using wrist rockets or real powerful
sling shots to shoot pellets at the tribal members while they were out spearing. It was a
violent time up here.”


As court after court upheld the rights of native spear fishermen, and as commercial
fishermen continue to prosper, hostilities subsided and now, as the Native Americans prepare for
their biggest rice harvest in more than 50 years, the Ojibwe hope that the controversy over water levels
will also die down. Tribal leader Roger Labine says wild rice is a symbol of the Ojibwe’s survival:


“This is an endangered species. It’s something that we’re fighting to save, just like the
eagle, just like the wolf. We were put here to care for Mother Earth and all the gifts that
the creator gave us.”


And having won the first battle to restore rice beds, Labine is hoping to secure even
greater protection for these wetlands by asking the federal government to declare the rice
beds historic.


For the GLRC, I’m Sandy Hausman.

Related Links

Greener Ways to Get a Green Lawn

  • For some people, lawn care is a choice between burning calories or burning fossil fuel. (Photo by Lester Graham)

Polls indicate the majority of people want to do better toward the environment. One of the most polluting activities at many homes is lawn care. Lawn mowers spew out emissions that pollute at a higher rate than cars. Lawn sprinklers can use massive amounts of water. And over-use of fertilizer can pollute nearby streams. The GLRC’s Lester Graham looks at simple things you can do to reduce pollution and still have a green lawn:

Transcript

Polls indicate the majority of people want to do better toward the
environment. One of the most polluting activities at many homes is lawn
care. Lawn mowers spew out emissions that pollute at a higher rate than
cars. Lawn sprinklers can use massive amounts of water. And over-use
of fertilizer can pollute nearby streams. The GLRC’s Lester Graham
looks at simple things you can do to reduce pollution and still have a
green lawn:


It figures that the day I went to talk to a turf expert about mowing and
lawn care… it would be raining.


“Well we needed it. So, I guess that’s the good thing about it.”


Tom Smith is the Executive Director of the Michigan Turfgrass
Foundation. He’s got all kinds of recommendations for how to properly
prep soil for lawns… but we wanted to limit this story to some simple,
practical things we can do with an existing lawn to reduce the impact to
the environment.


“One of the first things and easiest things you can do is mow high. In
fact, I tell most consumers, most residential facilities mow as high as you
can set your mower. Because, what that will do is you’ll get a better root
system, you’ll get more shading of that soil and you’ll have less water
loss.”


Smith works closely with the Michigan State University’s turf grass
research program. One of the things they’ve learned there goes against
some of the advice you might have heard in the past about watering. In
research that’s been going on since 1982, they’ve let Mother Nature take
care of one plot… another gets deep waterings a couple of times a
week… and a third gets daily watering, light rates, in the middle of the
heat of the day. The plot that looks best year after year… the one that
gets light watering, daily during the middle of the day. Most of the water
evaporates… but it reduces the heat stress on the grass… so it doesn’t go
dormant and brown. And Smith says it actually uses less water…


“In that research, we were able to reduce water use by about half by
doing daily watering at light rates in the middle of the day compared to
that deep infrequent watering.”


“Now, there are going to be some people who say ‘Look, I don’t want to
use water in a cosmetic way at all.’ Is there a grass that doesn’t use the
kind of water that most grasses we know do?”


“Actually there is one of our grasses that we recommend called Turf
Type Tall Fescue. Turf Type Tall Fescue is our most drought tolerant
grass. In most summers it will stay green without any supplemental
water.”


Smith says before you start spreading fertilizer on your lawn… you
should get a soil test to see exactly what you need. It’s an eight to ten
dollar test that can be done by your county extension office… and it’s
good for about three years. If you put fertilizer down without knowing…
you’re probably adding to the phosphorous and nitrogen pollution
problems in the streams and lakes in your area and beyond.


Keeping your equipment running well also helps reduce pollution. An
oil change in the lawn mower… and sharpening your mower blades.


(Sound of grinder)


Mark Collins maintains the turf plots at Michigan State University’s turf
grass program. His crew sharpens their blades every third mowing… but
they’re probably mowing a lot more than you do…


“Probably a homeowner should at least once a month. Just keep the
blade sharp. That’s the biggest thing. If it’s a sharp blade, then it cuts
the grass cleanly and you don’t get a frayed edge on the grass blade.”


And Collins says a mulching mower is best because it cuts the grass
blades into tiny bits that help fertilize the lawn… and reduces the need
for bagging your clippings.


And while we’re on the topic of mowers… recent years, lawn mower
manufacturers have been making more efficient, cleaner burning
machines… although they’ve resisted the idea of catalytic converters
which would greatly reduce emissions.


At Midwest Power Equipment, John Brown says there’s not a lot of
consumer pressure to make lawn mowers more environmentally
friendly…


“Nobody asks about environmentally friendly – or very, very few. Most
people want to know about power, they want to know about ease of use.
As far as environmentally friendly, it’s probably the last question that
comes up.”


But if you are interested… Brown says there’s a little bit of information
on emissions right on the mower.


“Yeah, there’s a little sticker that’s actually on – like on the ones I have
on the floor here – it’s wrapped around the gas tank. It says an air index
quality and it’s a one-to-ten scale, one being the best, ten being the worst.
So, you could look at it, kind of judge for yourself.”


So, using less water, planting hardy grass, using only the fertilizer you
need, keeping your machinery in good working order and buying the
least polluting models all help. But… there are soulutions… such as
planting more drought resistant shrubs and trees so that there’s not as
much grass to mow… and if you’re really adventurous… you can get a
manual reel mower… one with no engine… it just uses the energy you
provide by pushing it.


(Sound of a reel mower)


For the GLRC, I’m Lester Graham.

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