There’s an effort underway to get people to stop burning their trash. The Great Lakes Radio Consortium’s Lester Graham reports that experts have found that toxins from backyard burning can get into food:
Transcript
There’s an effort underway to get people to stop burning their trash. The Great Lakes Radio
Consortium’s Lester Graham reports that experts have found that toxins from backyard burning
can get into food:
Often, garbage truck routes don’t include rural areas, so many people there just burn their trash.
But that can lead to toxins getting into food. John Giesy is with the National Food Safety and
Toxicology Center at Michigan State University.
“Well, when we burn waste in a barrel, the dioxins will be in the gas and in the particulates. And,
so, they go downwind, but those particulates ultimately fall out.”
And they end up on the grass that livestock eat. We end up taking in the dioxins in the meat and
milk products that we eat. Because backyard burning is the largest human-caused source of
dioxins, the Environmental Protection Agency is working with states and communities to try to
get people to get rid of their trash some other way.
For the Great Lakes Radio Consortium, this is Lester Graham.
Spotted Knapweed seed heads - Land managers work hard to control or prevent invasive plants like this one from taking root. New research may help their efforts. (Photo by Barry Rice/The Nature Conservancy)
New research indicates that some invasive plants spread rapidly because they don’t have natural enemies to keep them in check. The Great Lakes Radio Consortium’s Mark Brush explains:
Transcript
New research indicates that some invasive plants spread rapidly because they
don’t have natural enemies to keep them in check. The Great Lakes Radio
Consortium’s Mark Brush explains:
The research found that some foreign plants thrive in North America because
they’ve escaped their natural enemies. In a study published in the journal Nature, researchers found some of the enemies the plants escaped were
in the soil. They looked at the invasive plant spotted knapweed. They found the
plants are not only free from microbes that might eat their roots, but they
also found microbes in the areas the plants invaded that actually help them
grow.
Ray Callaway is one of the researchers at the University of Montana.
He says regulations are needed to stop these kinds of invasions:
“I think we ought to have much stronger restrictions on the movement of
horticultural plants and so on from across continents. I think we’re
playing with fire.”
The majority of plant invasions come from the horticultural trade. Policymakers are now
working on a protocol to monitor the importation and sale of non-native plants.
For the Great Lakes Radio Consortium, I’m Mark
Brush.
70 billion dollars – that’s how much the world’s wetlands are worth in annual goods and services, according to a report from the World Wildlife Fund. The Great Lakes Radio Consortium’s Rebecca Williams has more:
Transcript
Seventy-billion dollars – that’s how much the world’s wetlands are worth in
annual goods and services, according to a report from the World Wildlife
Fund. The Great Lakes Radio Consortium’s Rebecca Williams has more:
The report says wetlands provide goods and services such as water filtration,
habitat, flood control and food production. The authors analyzed all the
studies that have been done on the economic value of wetlands.
They say billions of dollars are spent each year to drain wetlands for
immediate economic benefits.
Chris Williams is a conservation manager with the World Wildlife Fund. He
says decision-makers don’t always understand the long-term benefits of
wetlands.
“And if you’re, say, an official in a local jurisdiction, you’re thinking,
what is the immediate return of developing this area? There might be tax
revenues, there might be employment benefits, there might be increased
housing. Now those are important, and those should be thrown into the mix.
What we are mainly saying is, fine, but when you’re balancing those short-term returns, balance
them with the long-term value of the resource that
you’re developing.”
Williams says governments might try to restore wetlands when an area has
been paved over. But he says it’s much more expensive to build a wetland
from scratch than to take steps to preserve it.
For the Great Lakes Radio Consortium, I’m Rebecca Williams.
Researchers collect as much information as they can to take advantage of the rare opportunity of being close to a tranquilized moose. (Photo by Stephanie Hemphill)
Many wildlife lovers consider moose to have a special mystique. Adult moose are bigger than horses, and they seem fearless. But biologists don’t know much about many moose populations. A team of researchers is just beginning to learn about one herd of 4,000 moose in the Northwoods. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:
Transcript
Many wildlife lovers consider moose to have a special mystique. Adult moose are bigger than
horses, and they seem fearless. But biologists don’t know much about many moose populations.
A team of researchers is just beginning to learn about one herd of 4,000 moose in the
northwoods. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:
Half a dozen big four-wheel-drive pickups are parked at a boat landing on MacDougal Lake. It’s
about 30 miles west of the Lake Superior shore, in the heart of the Superior National Forest in
Northeastern Minnesota. The forest is twice the size of Delaware.
It’s 25 degrees. At the edge of the frozen lake, men in conservation officer uniforms are standing
around a small fire. They’re waiting to hear from the helicopter. The crew on the helicopter is
shooting moose with a tranquilizer gun. They need to get up close to the animals to learn more
about them.
Scientists think more moose could be living in this area. Mike Shrage is a biologist with the
Fond du Lac band of Chippewa. He says they’d like to know why there aren’t more moose here.
There are several possible reasons.
“Wolves, bears, lack of habitat, hunting and other kinds of human-related mortality, automobile
accidents.”
Shrage is listening to a radio cradled in a canvas holster on his shoulder. He cocks his head to
catch every word.
“There’s three of them there.”
The helicopter crew has spotted some moose.
“Yeah, I think they’re bulls.”
“These are three bulls. It’s not uncommon this time of year, you’ll get small groups of them
hanging together for awhile. Little bachelor groups.”
Shrage says the helicopter crew will try to chase one of the moose into an open area, like a frozen
lake, where they can get an easy shot.
“And if it lays down right in the lake, then they can sit down on the ice next to it. It makes
everything a lot easier.”
“Yeah, he’s gonna hopefully drop in the spot where they can get right to him.”
“I think they must already have a dart in him and they’re just waiting for it to take effect.”
The helicopter drops off a crew member to stay with the moose, and comes back to the boat
landing to pick up a radio collar.
(sound of helicopter)
Counting moose is a challenge. A recent survey in this area showed a drop from 5,000 to 4,000
animals in one year. But researchers admit there could be a 25% margin of error in those figures.
That’s because it’s hard to find the moose in heavily wooded areas. The collaring project will
make counts more accurate.
Three biologists are gathered around the latest moose to be fitted with a collar. He’s a mature
bull. He’s lying on his side in the middle of a huge frozen swamp.
He’s blindfolded to make the process less stressful. He seems to snore, while the biologists poke
and prod.
They take blood samples to check on hormones and blood chemistry, and to look for disease.
They also pull a tooth to send to a lab. They can get an exact age by measuring the rings on the
tooth.
Glenn Delgiudice takes notes on the animal’s fat reserves. That’s a good indication of its overall
health.
Delgiudice even uses an ultrasound machine to measure the fat in the moose’s rear end.
“Rump fat is one of the main fat depots of these animals, and also one of the first to go. They
mobilize their fat depots generally in a sequence. So we measure the depth of the fat with
ultrasound.”
Another key indicator of the animal’s health is the condition of its hair. This moose has most of
its hair. They aren’t all so lucky. Some of them have scratched a lot their hair off.
<"Rick yesterday saw a calf of one of our cows that was what'd you say Rick, only 25% hair. So
that one's been rubbing and scratching for a long time. And, of course, when they're doing that
rubbing and scratching and biting, they're not foraging, and it can drain them over time."
The collar has to fit just right. If it’s too loose, a moose can get a foot caught in it. If it’s too
tight, it can bind, especially in the fall mating season when the bulls’ necks get thicker.
“Yep, that looks good.”
(clicking)
Finally the moose is given an antidote to the tranquilizer, pain-killer, and sedative that have kept
him immobile for about half an hour.
“You know, you’ll see his ears twitch, and he’ll start to lift his head,” Delgiudice says. “The
moose are better at getting up than deer typically. They just get up, loosen up a little bit, and
then lope away.”
The moose struggles up, stands for a minute, and then saunters off toward the trees.
That’s moose number five for the day. The team is planning to track 60 moose for five years.
It’ll tell them what kills these moose and what’s keeping the population from growing.
For the Great Lakes Radio Consortium, I’m Stephanie Hemphill, in the Superior National Forest.
A day marker for barge traffic on the Missouri River. Environmentalists say there's not enough barge traffic on the Missouri to warrant the millions spent on maintaining the lock and dam system. Barge operators disagree. (photo courtesy of USGS)
A team of U.S. Fish and Wildlife Service scientists is putting the final touches on its latest recommendation for the management of the Missouri River. The document, known as the Biological Opinion, will guide the Army Corps of Engineers in deciding how to control the river in a way that best protects endangered birds and fish. It’s the latest turn in a contentious battle that for years has pitted environmentalism against economics. The Great Lakes Radio Consortium’s Kevin Lavery reports:
Transcript
A team of U.S. Fish and Wildlife Service scientists is putting the final
touches on its latest recommendation for the management of the Missouri
River. The document, known as the Biological Opinion, will guide the Army
Corps of Engineers in deciding how to control the river in a way that best
protects endangered birds and fish. It’s the latest turn in a contentious
battle that for years has pitted environmentalism against economics. The
Great Lakes Radio Consortium’s Kevin Lavery reports:
The new Biological Opinion will be the second such document in three years.
The 2000 Bi Op – as it’s often called – advocated high water releases on the
Missouri each spring to cue the spawning season of the pallid sturgeon.
Reducing the flows in the summer, the Bi Op explained, would expose sandbars
to provide nesting grounds for two endangered birds, the interior least tern
and the piping plover.
That philosophy had been the view of many in the Fish and Wildlife Service,
who have studied the Missouri for more than a decade. But in early
November, the Department of the Interior announced it was replacing the
original scientific team to expedite the process of crafting a new outlook
for the river.
The decision unsettles environmentalist Chad Smith with the group American
Rivers. He feels the switch was an attempt by the Bush Administration to
silence those who offered a politically unpopular opinion.
“It seems to us like there’s an effort being made to try to find
someone to give the administration the answer that they want; that they don’t want to make flow
changes even though the science is crystal clear.”
The Fish and Wildlife Service team leaders deny that politics played a role
in rebuilding the scientific staff. The 15-member team in fact includes
seven who either worked on the 2000 Bi Op or have specific research
experience on the Missouri.
Commercial shippers that do business on the river are hopeful that new
thinking may lead to more growth for their industry. Navigation on the
Missouri has always been negligible, but industry officials say the past
summer was nothing short of devastating. A series of court decisions and
overturns led to a three-day drop in flow levels in August that ground barge
traffic to a halt.
Chris Brescia is President of the Midwest Area River Coalition 2000, which
represents barge operators. He says that incident punctuated their position
that unpredictable flow levels make the Missouri an unreliable
transportation mode:
“The conflicting court orders literally brought everything to a
standstill because it was unsafe for operators to quote freight rates and to
presume that they could navigate on the river when they didn’t know at what
point in time the court was going to reverse a decision to support
navigation.”
Central to the debate over how to manage the Missouri is the issue of
whether the economic value of river commerce is worth the cost of keeping
the river navigable. For the past decade, the Corps of Engineers has spent
just three million dollars a year on navigation. The Corps’ own data
indicates that navigation is worth about three times that amount each year.
One fully loaded 15-barge tow can carry more than 22-thousand tons, about as
much as 870 large semi trucks. Barge operators say having the river as a
viable transportation route keeps the cost of other shipping modes down.
But American Rivers argues that the two million tons of fertilizer, grain
and similar products barges carry each year on the Missouri fall far short
of what the Corps projected decades ago would be carried on the river.
For its part, the Corps of Engineers says whatever the cost-benefit ratio,
navigation is a congressionally mandated purpose it’s obliged to continue
paying for.
The draft of the Corps’ 2004 operating plan does not include the flow
changes environmentalists have demanded. Corps spokesman Paul Johnston says
his agency recognizes that those measures will not provide the biological
conditions the listed species need to survive. Instead, Johnston says the
Corps plans to spend more than 40-million dollars next year to accelerate
its habitat creation program:
“We’ll be looking for opportunities to acquire appropriate land
from willing sellers, and we’ll be looking at building tern and plover
habitat as well. So I’m really convinced we will reach a point where we can
have a much richer river than we have now and still enjoy the economic
benefits.”
The scientific team has until December 15 to complete its Biological
Opinion. The Army Corps of Engineers hopes to have its final operating plan
for the Missouri in place by March 1.
For the Great Lakes Radio Consortium, I’m Kevin Lavery.
A new report finds outdated sewage systems are polluting waters throughout Ontario. The Great Lakes Radio Consortium’s Karen Kelly reports:
Transcript
A new report finds outdated sewage systems are polluting waters throughout Ontario. The Great
Lakes Radio Consortium’s Karen Kelly reports:
The report says aging treatment plants are dumping improperly treated sewage into Ontario
waterways, especially when rain or snow overload the system.
It’s a problem that’s found all over North America.
The latest report comes from the Ontario Environmental Commissioner. It says 38 percent of the
province’s sewage is released into Lake Ontario. Commissioner Gord Miller says that waste
threatens the ecosystem.
“You can actually get the risk of fish kills, of fish avoidance, loss of fish habitat, and then you can
get discharges of actual toxic materials, like ammonia.”
Miller says the sewage is not threatening people’s drinking water. But it’s harming fish and
wildlife, and leading to the closure of beaches.
He wants to see Ontario study and address the problem.
For the Great Lakes Radio Consortium, I”m Karen Kelly.
A recent study shows a possible link between global warming and lake effect snow. The Great Lakes Radio Consortium’s Richard Annal has more:
Transcript
A recent study shows a possible link between global warming and lake
effect snow. The Great Lakes Radio Consortium’s Richard Annal has more:
The study was published in the Journal of Climate. When compared with the rest of the nation,
researchers found that the Great Lakes region had a significant increase in the amount of
snowfall.
Adam Burnett is an Associate Professor of Geography at Colgate University. He was the lead
researcher of the study. Burnett found that Warmer lake temperatures make ideal conditions for
lake effect snow.
“As cold air begins to blow across these warm lake surfaces that sets up the lake effect snow
processes. And the thinking is that perhaps global warming is being reflected by increases in the
thermal characteristics of the Great Lakes, which are then playing out in the Great Lake effect
snow.”
In the study, Burnett compared the snowfall from fifteen weather stations around the Great Lakes.
He examined records going back over seventy years. Syracuse, New York is one of the nations
snowiest cities. In terms of the amount of snowfall, it had five of it’s worst winters on record in
in the 1990’s, the warmest decade of the twentieth century.
For the Great Lakes Radio Consortium, I’m Richard Annal.
Almost 6300 Americans contracted the West Nile virus this year. And 133 of them died. Each season, health officials scramble to predict where the virus will strike before it affects humans. The Great Lakes Radio Consortium’s Karen Kelly reports on a experimental approach being used in Canada that might make that information faster and easier to collect:
Transcript
Almost 63 hundred Americans contracted the West Nile virus this year. And one
hundred 33 of
them died. Each season, health officials scramble to predict where the virus will
strike before it
affects humans. The Great Lakes Radio Consortium’s Karen Kelly reports on a
experimental
approach being used in Canada that might make that information faster and easier to
collect:
(sound of chickens)
Stephen Burgess stands in front of a chicken coop. He holds an egg carton in one
hand while
slowly lifting the coop’s plywood cover. He carefully collects a dozen eggs that
have rolled into a
trough at the back of the cage.
From here, he’ll visit thirty more sites around Ottawa, Canada’s capital.
Collecting eggs from
small farmers as well as test flocks set up around the city. It’s a new form of a
common early
warning system that’s used for the West Nile virus – the sentinel chicken flock.
But in this case,
it’s the eggs that are tested, not the chickens.
“Many states in the United States are using chickens but they are taking blood
samples from the
chickens every one to two weeks. The approach that we’re doing is we’re able to
monitor for
West Nile virus by looking for specific proteins in the eggs.”
Burgess says this offers researchers some distinct advantages. Blood sampling
requires the use of
trained technicians – one to hold the bird while the other draws blood. This causes
stress to the
chicken. And it poses a danger to the humans who are handling the blood samples.
Two people have been infected with West Nile virus while collecting chicken blood.
Burgess
says the nice thing about eggs is that they pose no risk to humans, and they’re easy
to get.
“If you want to go and look at a particular county, you can say, go out and collect
every egg from
every backyard flock this week and you can have a flash snapshot of what is the
status throughout
the county and that was totally unfeasible using previous approaches.”
Burgess is leading a pilot project to test out this approach in the Ottawa region.
He’s a biochemist
by training and runs a company with Hugh Fackrell, a microbiologist at the
University of
Windsor. The two had been working in the lab, trying identify antibodies in animal
blood. This
spring, they stumbled upon a method that they say reveals the complete immune
profile of a
chicken by examining its egg.
For now, they’re keeping that method a secret – until it’s patented. But it was
enough to convince
Ontario’s Ministry of Health to fast track a pilot project for this fall.
Dave Jensen is a spokesman with the ministry.
“We’re interested in testing out this approach because it offers both a less
invasive way of getting
test results and a way of getting more of them than doing it the way we have been.”
The project has also attracted the attention of researchers at the U.S. Centers for
Disease Control.
Jennifer Brown is a scientist at the CDC’s West Nile headquarters in Fort Collins,
Colorado.
“This is very new work and it’s very interesting. We’re really looking forward to
hearing the
results of this pilot study, but I think it’s too early to say how useful it’s going
to be in future West
Nile surveillance efforts.”
For instance, Brown says it might require a redesign of the sentinel chicken cages
that are
typically used.
“If you had an egg that was positive for West Nile antibodies, you would want to
know which
chicken it came from and you would want to know how many chickens in the flock were
laying
eggs that contained West Nile antibody.”
At this point, the pilot project is not that specific. Researchers are looking for
evidence of West
Nile in each flock, rather than the individual birds.
But Stephen Burgess, the pilot project’s director, is taking the idea into account.
He plans to
deliver a final report on the project in December. He’ll consider what worked, and
what needs
improving. And he hopes to demonstrate that testing eggs can provide a safer, and
less expensive
alternative for tracking the West Nile virus.
For the Great Lakes Radio Consortium, I’m Karen Kelly.
Earlier this year, the EPA tightened regulations on pollution from large-scale livestock operations. Farmers will be limited on the amount of manure they’re allowed to spread on fields. A new study by the USDA says, under the new regulations, these farmers will need more land on which to spread the manure. The Great Lakes Radio Consortium’s Mark Brush has more:
Transcript
Earlier this year, the EPA tightened regulations on pollution from
large-scale livestock operations. Farmers will be limited on the amount of
manure they’re allowed to spread on fields. A new study by the USDA
says, under the new regulations, these farmers will need more land on which
to spread the manure. The Great Lakes Radio Consortium’s Mark Brush has
more:
Researchers say most of the big livestock farms will need more land under
the new regulations. The study found that operations in some parts of the
country will have trouble finding that land.
Marc Ribaudo is an agricultural economist with the USDA’s Economic Research
Service. He says it’s possible that these large-scale farms will look to
the Midwest as a potential place to relocate:
“I would think that for those companies or those operations where manure
management is suddenly an important cost, that they would give greater
consideration to the Midwest or areas where there’s more land available for
spreading manure.”
He cautions that manure management is just one factor in the overall cost of
running these farms. But that finding available land to spread manure on is
becoming increasingly important.
For the Great Lakes Radio Consortium, I’m Mark Brush.
The Horicon Marsh in Wisconsin - Researchers say global warming may mean earlier ice breakup and spring runoff, more intense flooding, and lower summer water levels. They say this could spell trouble for wetlands and the species that depend on them. (Photo by Ryan Hagerty, USFWS)
Warmer weather might sound like a welcome reprieve to a lot of people spending early spring in the Midwest. But a team of researchers is warning that in years to come, warming trends in the Great Lakes region could be bad news for business, and for people’s health. The Great Lakes Radio Consortium’s Sarah Hulett reports:
Transcript
Warmer weather might sound like a welcome reprieve to a lot of people spending early spring in the
Midwest. But a team of researchers is warning that in years to come, warming trends in the Great
Lakes region could be bad news for business, and for people’s health. The Great Lakes Radio
Consortium’s Sarah Hulett reports:
Climate change is not a phenomenon that’s unique to the Great Lakes
region. But University of Michigan biologist George Kling says there’s
good reason to look to the Midwestern U.S. for early clues about global warming
elsewhere.
“The middle part of North America, including the Great Lakes region, warms, or has warmed in the
past, at a slightly higher rate than the globe overall. Because we’re right in the center of a continent,
and there’s less buffering impact from the oceans. So coastal areas tend to warm a little bit less, at
a slower rate, continental areas warm at a little bit faster rate.”
Kling and other researchers from the Union of Concerned Scientists, and
the Ecological Society of America, spent the last two years looking at
some of the changes that can already be seen in the region: shorter winters,
higher temperatures, and less ice on the Great Lakes during the winter
months. And Kling warns that extrapolating these trends out over the coming
decades paints an ugly picture:
“These climate changes that we project in our new report will magnify
existing health and environmental problems, and may stress our economy.”
Asthma that’s aggravated every time a heat wave hits, increased competition
for groundwater as dry weather saps wells, and financial losses in communities that once relied on
winter tourism are all distinct possibilities. And the report warns that more visible changes to the
landscape might also
be on the way.
Donald Zak teaches ecology at the University of Michigan. He says during
past periods of warming, trees actually moved north to survive. But Zak
says that kind of tree migration may no longer be possible.
“Ten thousand years ago, when species migrated across the region, there
were very few barriers to migration that we have now placed in the landscape –
like large areas of agriculture, large areas of urban development. Those
will become barriers to migration that didn’t exist following the close of the
last ice age.”
Theories about causes of the warmer weather are well known: heat-trapping
gasses – mostly carbon monoxide – are spewed from coal-fired power plants
and gasoline engines. And continued deforestation and urban sprawl help
ensure mother nature never catches up with processing it all. But the researchers who worked on
the project say solutions are available to slow the effects of global warming. The report makes the
case for raising fuel economy standards for cars and trucks. David Friedman with
the Union of Concerned Scientists says right now, there are more than 30 models of cars on the
market that get more than 30 miles per gallon. The problem, Friedman says, is that those are
mostly compact cars that don’t meet the needs of people who are shopping for pickups, minivans,
and SUVs. Friedman says for those customers, there’s no way for them to use their
wallets to show their desire for more fuel-efficient vehicles.
“When your choice is between 17 and 18 miles per gallon, that’s not a
choice. You’re probably going to choose the vehicle based on the color
and the cup holders, not the fuel economy, when the difference is only one
mile per gallon.”
Some critics say the incremental changes that would result from raising
fuel economy standards would have almost no impact on global warming.
But researchers on the Great Lakes study say resistance from policy makers
and corporate leaders doesn’t have to hamper efforts to slow the effects
of climate change. They say even choices at the household level – like
carpooling and conserving energy can help lessen the damage.
For the Great Lakes Radio Consortium, I’m Sarah Hulett.
