Tag: impact

Outdoor Lab Forecasts Global Warming Effects

  • Mark Kubiske checks the valve that controls the flow of greenhouse gases to a stand of sugar maples, birch and aspen. (Photo by Jennifer Simonson)

Scientists from around the world are studying how higher levels of carbon dioxide will affect forests 100 years from now. They’re doing that by pumping higher levels of CO2 and ozone into stands of trees. The Great Lakes Radio Consortium’s Mike Simonson visited the experimental forests and has this story:

Transcript

Scientists from around the world are studying how higher levels of carbon dioxide will affect forests 100 years from now. They’re doing that by pumping higher levels of CO2 and ozone into stands of trees. The Great Lakes Radio Consortium’s Mike Simonson visited the experimental forests and has this story:


(sound of “quiet area”)


The north woods of the Great Lakes states are stands of millions of acres of pine, maple, birch, and aspen forests. It’s a perfect place to try to figure out how trees will react to the higher levels of ozone and carbon dioxide scientists expect in the future.


(sound of beeping fence gate)


The first thing you notice at Aspen Free Air Carbon Dioxide Enrichment Project – Aspen FACE for short – is two huge tanks inside the fenced in enclosure. Each one is bigger than an 18-wheel tanker truck. They’re full of carbon dioxide… CO2. So much CO2 is used in this experiment, the tanks are filled twice a day.


(sound of filling tanks)


If you looked at the site from an airplane, you’d see 12 circular tree stands surrounded by 30 foot high pipes. Those pipes pour CO2 or ozone gases or both into the air surrounding birch, sugar maple, and aspen trees. The scientists know that greenhouse gases in the earth’s atmosphere have been increasing. They believe two centuries of industrial pollution has contributed to the problem. And they expect the CO2 and ozone levels to double by the end of this century. They’re raising the level of greenhouse gasses in different mixes to see what the predicted levels will do to forests.


This open air project is different than previous experiments. David Karnosky is with Michigan Tech. He’s the Project Manager for Aspen FACE. He says before these kinds of projects, they just tested trees inside places like greenhouses.


“We needed to get out of those chambers. We needed to have a more realistic, real world sort of situation where we had multiple trees. We wanted real intact forest communities. We didn’t want to have just a small number of trees inside of a chamber.”


The United States Department of Energy launched this experiment in Wisconsin’s northwoods seven years ago. Karnosky says they’re learning how the trees react to the higher CO2 levels, and that could shape the future of the world’s timber industry.


“Who will be the winners? Who will be the losers? Will aspen or birch or sugar maple? In northern Wisconsin here we’ve got probably 40 million acres of those species mixes. What’s going to happen under elevated CO2 in the next 100 years? Will these forests remain as they are?”


(sound of driving on gravel)


Driving to one of the experimental circles, we pull up to a ring of trees. Mark Kubiske is one of the two full-time on-site researchers.


“Now this particular ring is an elevated CO2 plot. CO2 is delivered through this copper pipe. It runs to that fan, there’s a large fan right on the end of that gray building.”


The scientists have found that trees in the CO2 circles grow 30 percent faster than trees without the gas.


“The trees are larger in diameter, they’re straight, they have lots of leaf area, they just look very healthy. That is just in tremendous contrast to the ozone ring. We’ll go up around the corner and look at one.”


Nearby another circle of trees is not doing nearly as well. The trees are skinny, twisted not as tall as the other sites. Higher ozone levels are hurting the trees.


At the sites where pipes emit both ozone and CO2, the tree growth seems normal – except for some stunted maple trees. The leaves of the aspen and birch take in much of the CO2, convert it to sugar which goes to its roots, eventually becoming a natural part of the soil. That suggests forests may help alleviate gases that cause global warming. The Project Director, David Karnosky says CO2 and ozone appear to cancel each other out. But he says it’s too early to draw any firm conclusions. Ultimately, he says governments will be able to look at this glimpse into the future and try to come up with emissions policies that help.


“The whole issue of the Kyoto protocol, our government not signing off on that. There’s been some relaxing of the feelings from what I’ve seen from the President’s report now that they’re beginning to realize that elevated CO2 is having an impact on global warming and could be impacting our plant communities.”


Karnosky says it’s possible that besides reducing emissions, governments might determine that planting more trees might be very helpful in reducing greenhouse gasses worldwide.


For the Great Lakes Radio Consortium, I’m Mike Simonson.

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Rust Belt City Desires High Tech Future

  • Wheels are turning both in young minds and innovative transportation. Both could help revive the Rust Belt. (Photo by Max Eggeling)

The loss of traditional manufacturing jobs has hit Great Lakes states hard in recent years. But some business owners believe they are on the cusp of creating a new type of manufacturing base. The Great Lakes Radio Consortium’s Julie Grant spent some time in one community that’s discussing how new businesses can provide a foundation for the future:

Transcript

The loss of traditional manufacturing jobs has hit Great Lakes states hard in recent
years. But some business owners believe they are on the cusp of creating a new type of
manufacturing base. The Great Lakes Radio Consortium’s Julie Grant spent some time in
one community that’s discussing how new businesses can provide a foundation for the
future:


Not long ago, there were lots of good-paying factory jobs in northeast Ohio. But the state
has lost 200,000 manufacturing jobs in the past four years. Some business people and
academics are trying to shape a new economy for the region. Their efforts could be
symbolized by a little bird…


“I need a Sparrow, I need it…”


A sparrow is an electrically charged three-wheel motorcycle that’s fully covered in steel.
It looks like a tear drop… or maybe a gym shoe. David Ackerman isn’t sure if he’d pick
one in bright orange…


“…but look, there it goes, look at it go! Is that the weirdest thing you’ve ever seen? I
love it! It’s like something out of “sleeper.” But it’s very sleek and cool and futuristic…
Does it really go 70? Yeah, it goes 70….”


While Ohio and other Midwestern states might have a tough time competing globally in
the steel market, some economists believe innovative transportation is one way Ohio
could build a foundation for a new economy. The state has put millions of dollars into
fuel cell research, Honda is building hybrid cars in central Ohio, and newer companies
are working to make auto engines cleaner and more efficient.


Some of those business owners gathered with people from the community to discuss how
transportation technology could be part of the region’s future. Bob Chalfant of a
company called Comsense spoke on the panel. He says the technology they’re
developing could have a huge impact…


“…the benefits to Cleveland are jobs. We figure the total market for pressure sensors for
combustion applications is about 2.2 billion dollars.”


Chalfant’s company expects to create 2,000 jobs in Cleveland. But if businesses like
Comsense are going to girder the area’s new economy, they’re going to need educated
employees for their high tech manufacturing jobs. The problem is, many young educated
folks are leaving the Midwest.


Meredith Matthews is a public school teacher in inner city Cleveland. She says they’re
trying to train students for these kinds of jobs, but they need direction from these new
companies…


“I teach in the third world known as the Cleveland Public Schools. I’m introducing
myself, so that if anybody needs kids, we got ’em. If you want to stop by and talk to me,
I’ll show you how to get kids, I’ll show you how to get in the door.”


Local universities and community colleges already have some research and training in
fuel cell technology. But mechanic Phil Lane looks at Cleveland’s poverty rate, the
highest among all big cities in the nation, and wants these companies to start training kids
even younger…


“We need to grab kids in the second and third grade, particularly in the very bad
neighborhoods, before the neighborhood can get to the kid. That’s what we really need to
do.”


Lane says training poor children early would provide a real foundation for a new
economy in Cleveland. Many communities that have lost their job base are starting
similar conversations and searching for ways to fit in to the global marketplace.


For the Great Lakes Radio Consortium, I’m Julie Grant.

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Glassing Bottled Water’s Image

  • While your bottle of water may depict this... (Photo by Ian Britton)

Over the past ten years, sales of bottled water have tripled. There’s a huge thirst for water that’s pure, clean and conveniently packaged. As part of the ongoing series, “Your Choice, Your Planet,” the Great Lakes Radio Consortium’s Victoria Fenner takes a look at why we’re turning to bottled water and whether it’s worth the price:

Transcript

Over the past ten years, sales of bottled water have tripled. There’s
a huge thirst for water that’s pure, clean and conveniently packaged.
As part of the ongoing series, “Your Choice, Your Planet,” the Great
Lakes Radio Consortium’s Victoria Fenner takes a look at why we’re
turning to bottled water and whether it’s worth the price:


On a warm sunny day, it’s easy to believe that sales of bottled water
are skyrocketing. People everywhere in this waterfront park in
Toronto are carrying plastic water bottles labeled with pictures of
glaciers and mountains. With a price tag of anywhere from fifty
cents to over a dollar a bottle, that’s a lot of profit flowing to
the companies that sell it.


But Catherine Crockett and Colin Hinz are packing water the old-
fashioned way. They don’t buy bottled water. Instead, they fill up
their own bottle before they leave home and refill it at the drinking
fountain.


Crockett: “Well, it’s cheaper and as an environmentalist, I’d rather
refill a container than waste a lot of money on pre-filled stuff that
isn’t necessarily any better than Toronto tap water. What’s the
point in paying a dollar for a disposable bottle full of what’s
probably filtered tap water anyway?”


Hinz: “Personally I think a lot of what’s behind bottled water is
marketing and I don’t really buy into that very well.”


Colin Hinz’s suspicions are shared by Paul Muldoon, the Executive
Director of the Canadian Environmental Law Association. His
organization has done a lot of research on water issues. He says the
reality often doesn’t live up to the image that companies have tried
to cultivate.


“There’s no doubt in my mind that when a person buys bottled water at
the cost they pay for it, they’re expecting some sort of pristine 200
year-old water that’s from some mountain range that’s never
been touched or explored by humans, and that the sip of water they’re
getting is water that is so pure that it’s never seen the infringement
of modern society. In reality, pollution’s everywhere and there are
very few sources of water that has been untouched by human intervention
in some way, shape or form.”


Environmentalists say it’s not always clear what you’re getting when
you look at the label on an average bottle of water. First of all,
it’s hard to tell by looking at the label what the source of the
water is. In many cases, it comes from rural areas just outside of
major cities. It can even be ordinary tap water which has been
refiltered. The U.S. Food and Drug Administration does set maximum
levels of contaminants, and some labeling requirements as well. But
they don’t regulate water which is bottled and sold in the same
state. That’s one of the reasons critics of the bottled water
industry say the standards for tap water are at least as stringent,
and often even higher than for packaged water.


Lynda Lukasic is Executive Director with Environment Hamilton, an
environmental advocacy group in Ontario. She still has confidence in
tap water, despite the fact that the water supply in a neighborhood
in Hamilton was recently shut down because of the threat of
contamination.


“I think we’d all be better to focus on ‘what is the water
supply like in the place that we’re in?’ and ensuring that we’re
offering people who live in communities safe, affordable sources of
drinking water. And going the route of bottled water does a few
things. It creates problems in exporting bottled water out of
certain watersheds when maybe that’s not what we want to see
happening. But there’s also a price tag attached to bottled water.”


Paul Muldoon of the Canadian Environmental Law Association says there
are other costs associated with bottled water that can’t be measured
in dollars.


“Some of the costs of bottled water include the transportation of water
itself, and certainly there’s local impacts. There are many residents
who are now neighbors to water facilities with truck traffic and all
that kind of stuff. There’s also the issue of bottling itself. You’ve
now got containers, hundreds of thousands… millions of them probably.
So there is the whole notion of cost, which have to be dealt with and
put into the equation.”


There are many things to take into account when you pick up a bottle
of water. You can think about the cost and whether or not there are
better ways of spending your dollar. You might think about
convenience. And whether the added convenience is worth the price. Ask
yourself what you’re really getting. Read the label to find out
where the water comes from and consider whether it’s any better than
what comes out of your tap.


The bottom line is, be an informed consumer. And keep in mind that
the choices aren’t as crystal clear as the kind of water you want to
drink.


For the Great Lakes Radio Consortium, I’m Victoria Fenner.

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Groups Say Bush Mercury Plan Could Hurt Tourism

Several environmental and sporting groups are criticizing the Bush administration’s plan to reduce mercury from power plants. They say it protects utilities at the expense of public health and the tourism industry. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:

Transcript

Several environmental and sporting groups are criticizing the Bush administration’s plan
to reduce mercury from power plants. They say it protects utilities at the expense of
public health and the tourism industry. The Great Lakes Radio Consortium’s Stephanie
Hemphill reports:


The Bush plan calls for reducing mercury emissions from power plants by allowing
emissions trading – plants could buy and sell vouchers allowing mercury pollution.


Mercury is a concern because children who eat a lot of mercury-contaminated fish are at
risk of nerve damage and learning disabilities. Environmental groups say mercury should
be regulated more strictly, to protect people’s health.


They also say people might not fish as much because of concerns about mercury and they
suggest that might hurt tourism.


The Wisconsin Wildlife Federation’s George Meyer fishes with his teenage daughter.


“We actually reduce the amount of fish we catch and bring home because she and our
other children can’t eat as much fish because of these mercury health advisories.”


But the environmentalists concede they’re making a guess about mercury’s impact on
fishing and tourism. So far, in most states the number of fishing licenses issued has not
changed significantly.


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

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