New Road Surface Could Mean Fewer Salt Trucks

  • A new coating on a road surfaces could lower its freezing point, preventing ice formation. (Photo by Cristian Pricop)

Drivers are testing out a new road coating that could reduce accidents in the winter. And as the Great Lakes Radio Consortium’s Stephanie Hemphill reports, it might also mean fewer trips for highway salt trucks:

Transcript

Drivers are testing out a new road coating that could reduce accidents in the winter. And as the Great Lakes Radio Consortium’s Stephanie Hemphill reports it might also mean fewer trips for highway salt trucks:


Russ Alger directs the Institute of Snow Research at Michigan Technological University. He’s come up with an aggregate that can absorb road salt. The aggregate is glued to the road surface with a tough epoxy. Alger says the aggregate can hold onto road salt for an entire season. That means when it gets cold, the salt will prevent ice from forming.


“And so in essence what we’ve done is we’ve lowered the freezing point of the pavement itself, and what that means is, twenty degrees pavement temperature now, ice won’t form at the surface of it.”


It also means road crews can use less salt, and make fewer trips to trouble spots. The new coating was installed on a bridge in Northern Wisconsin. Alger says accidents there have been reduced dramatically. It’s also being tried out on some runways at Chicago’s O’Hare airport.


For the GLRC, I’m Stephanie Hemphill.

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Breaking Down Groundwater Pollution

  • While the idea of cleaning up the water with bacteria may be oxymoronic, Michigan State University is saying that it works. (Photo courtesy of the National Science Foundation)

Scientists in the Great Lakes region are seeing good results from a new method that fights groundwater pollution. The Great Lakes Radio Consortium’s Erin Toner has more:

Transcript

Scientists in the Great Lakes region are seeing good results from a new method that fights groundwater pollution. The Great Lakes Radio Consortium’s Erin Toner has more:


Researchers at Michigan State University are using a process that introduces microbial bacteria into contaminated aquifers. Over time, the microbes break down hazardous waste, usually from industrial spills. Before this new technology, the most common cleanup technique was called “air stripping.” That requires groundwater to be pumped to the surface, where toxic chemicals are basically blown out of the water and into the air.


Professor Mike Dybas says the new process doesn’t leave pollution in the ecosystem.


“It’s treatment actually occurring where the pollution is, and it is physically destructive of the contaminant. So at the end of the day, the contaminants are broken down into harmless end products.”


Dybas says the process could be used in any type of industrial or agricultural spill. He says since the microbes move with the water, cleanup could stretch for miles underground.


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

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Mining vs. Old-Growth Forest

  • Dysart Woods in southeast Ohio is an old-growth forest. Many of the trees are more than 300 years old. (Photo courtesy of dysartwoods.org)

The need for cheap energy is coming into conflict
with efforts to preserve a forest. Coal mining companies are using a technique that causes the land to subside and sometimes changes natural underground water systems. Environmentalists say mining underneath a forest preserve could destroy the ecosystem. The Great Lakes Radio Consortium’s Lisa Ann Pinkerton reports on environmental activists who are defending the
forest:

Transcript

The need for cheap energy is coming into conflict with efforts to preserve a forest.
Coal mining companies are using a technique that causes the land to subside and sometimes
change natural underground water systems. Environmentalists say mining underneath a forest
preserve could destroy the ecosystem. The Great Lakes Radio Consortium’s Lisa Ann Pinkerton
reports on environmental activists who are defending the forest:


For decades, the coal mining industry has been using a technique of extraction called
long wall mining. Industry officials say it’s the most effective way to get the bituminous
coal out of the ground. In traditional room and pillar mining, the land above is not disturbed.
But the long wall machine leaves no support for the 1000-foot tunnel created in its wake. After
the coal is extracted, the ground caves in, causing the land to sink.


Dysart Woods, in southeastern Ohio, is slated for such a fate. The conservation group,
Buckeye Forest Council, wants to block the woods from mining. Its members believe long
wall mining will destroy the old-growth forest. The four hundred and fifty acres, fifty-five
acres of the trees are more than 300 years old. Fred Gittis is an attorney who has volunteered
his services to protect the woods.


“And these woods are precious, and they are among the last old-growth forest areas remaining,
not only in Ohio, but in this part of the country. Recently a documentary was filmed in Dysart Woods, because it has some of the conditions that would have existed at the time of George
Washington’s life.”


Gittis argues state should repeal the mining permit granted for Dysart Woods. Ohio Valley
Coal was granted the permit in 2001. As steward of the woods, Ohio University disputed the
permit for three years. But last November, it agreed to drop its appeal, in exchange for $10,000 from the state to study the forest’s water, as it is undermined. Ohio Valley
Coal Company would drill the wells needed. But the Buckeye Forest Council says a study doesn’t
solve the problem.


“First of all it is just a water monitoring project. It offers no protection to the woods.
Second of all, they don’t have the base line data right now to compare to what it normal.”


That’s Susan Heikler, Executive Director of the Buckeye Forest Council. When Ohio University
accepted the mining permit, her organization took up the fight. The group worked with lawyer
Fred Gittis and nationally known experts to review the science of the Coal Company’s mining
plan. Gittis says the Council’s experts were not impressed.


And, both hydrogeologists and mining experts have indicated that the basic science related
to this mining permit is, not to be insulting but, junk.”


The plan calls for long wall mining within 300 feet of the old-growth forest. However,
experts from the Buckeye Forest Council say a 1500 foot buffer around the woods
is the only way to insure the protection of the hydrology – the natural water system that
sustains the forest.


In a major concession two years ago, the Coal Company agreed not to long wall mine directly
under Dysart Woods. Instead, room and pillar mining is planned. The Company says that will
delay subsidence for centuries to come. Attorney Fred Gittis says without core samples from
directly under the woods, the company doesn’t have the data to back up this claim.


“If you don’t know what that rock is, if it’s soft like claystone or shale, it can collapse.
And so its pretty basic stuff.”


Attorneys for the company declined to be interviewed for this story. In statements, the
Company defends its lack of data by pointing to exemptions they were granted by the Department
of Mineral Resources. The Company stands by its assertion that, quote, “trees and other surface
vegetation will absolutely not be affected by mining.” But in September, the story changed. In
court, a mining consultant for the company, Hanjie Chen, testified that the forest floor would
sink 5 inches. Attorneys for Ohio Valley Coal abruptly stopped his testimony after this
statement. But Gittis says the damage to the coal company’s case is already done.


Although Buckeye Forest Council rested its case in July, the defendant, Ohio Valley Coal is
still adding witnesses and dragging out the case. Fred Gittis says the Company is trying to
exhaust the Buckeye Forest Council’s legal funding. He adds that this is why he volunteers his
expertise.


For the time being, mining under the old growth forest has been pushed back until the hearings
conclude in November.


For the Great Lakes Radio Consortium, this is Lisa Ann Pinkerton.

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New Life for Old Running Shoes

Runners often wonder what to do with their shoes once the treads have worn too low to give enough foot support. People who have donated old shoes to charities or thrown them away have a new option now… a “sneaker recycling program.” As part of an ongoing series called “Your Choice; Your Planet,” the Great Lakes Radio Consortium’s Skye Rohde reports:

Transcript

Runners often wonder what to do with their shoes once the treads have worn too low to
give enough foot support. People who have donated old shoes to charities or thrown
them away have a new option now… a “sneaker recycling program.” As part of an
ongoing series called, “Your Choice; Your Planet,” the Great Lakes Radio Consortium’s
Skye Rohde reports:


David Lupinski wants old running shoes, no matter how smelly they are. They just need
to be clean.


Lupinski is the recycling director at the Oneida-Herkimer Solid Waste Management
authority in Utica, in upstate New York. He’s collecting used athletic shoes as part of the
Nike Reuse-A-Shoe program.


Now, this got my attention. I’ve been running for 11 years. I’m a one-pair-a-year girl.
I’ve sent way too many worn-out shoes to the Salvation Army… just because I didn’t
know what else to do with them. I wanted to find out what this is all about.


Nike picks up the shoes from participants like Lupinski and sends them to a facility in
Oregon where they’re ground up. David Lupinski explains it best.


“The upper area, that’s material that is more cloth and things like that. And that’s what
they make into padding for carpeting. The middle sole has a little bit more plastic, a little
bit more rubber in it. They grind that up and they make it into a material that they use for
things like tennis courts, basketball courts. The bottom of the sneaker or athletic shoe is
pretty much all rubber. They grind that up and they actually make a product that they call
“Nike grind.” And that material is what they use for tracks. It’s nice and soft and
pliable.”


The shoe program is a good fit for Utica. That’s because of the city’s ties to running. The
National Distance Running Hall of Fame is located here, and the country’s biggest 15-
kilometer road race – the Boilermaker – is held here every July.


But Utica is not alone. There are 33 organizations from 20 states participating in Reuse-
A-Shoe. Each of them is expected to collect at least 5,000 pairs of shoes this year.


This all started in 1993, when a couple of Nike employees asked if there was anything
they could do with defective shoes instead of throwing them out.


Nike joined up with the National Recycling Coalition in 2002 to expand the program to
all 50 states. Kate Krebs is Executive Director of the coalition.


“I liked it for a number of reasons. It was a company that was taking back their product
at its end of life and turning it into something that was really productive and really cool.”


Krebs has helped almost 60 organizations try to team up with Nike, and there’s already a
waiting list to participate. She says the participants are creative about collecting shoes
too.


“We just had a girl scout troop in Los Angeles on Earth Day collect more than 5,000
pairs of shoes in one day. Some zoos have set it up. Some marathons have set up
collection. Junior high/high school track programs are collecting. So everyone’s doing it
a little different… and that’s the part that’s so magic about it.”


Back in Utica, Dorothy Cornell is dropping off a few pairs of shoes at the National
Distance Running Hall of Fame.


“I just put in three sneakers that I found in my basement that are no good to me or my
family. And they’re doing a recycling here, so we’re bringing them down here. It’s, you
know, a great idea. I wish more people would, you know, be aware of it.”


(ambient sound)


A little later, the Solid Waste Management Authority’s David Lupinski peers inside the
donation box at the Hall of Fame.


(rustling sound… “Geez, this is a bag of athletic shoes…”)


He finds six pairs of shoes, including two fluorescent orange track shoes that are almost
brand new. He says he picks up about 40 pairs of shoes a week from this box. There are
seven other donation boxes around the area.


Lupinski has almost 800 pairs of shoes now, but he still has a long way to go before he
gets his 5,000 pairs and Nike sends a truck to pick them up. People have called him from
across upstate New York to see how they can get their old shoes to him.


Reuse-A-Shoe participants are all hoping for lots of shoes. But they also want to spread
the word and get people as excited as they are about giving old shoes new life.


For the Great Lakes Radio Consortium, this is Skye Rohde.

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