A recent study on pollution in North America shows a drop in environmental pollution between 1995 and 2000. The study was conducted by the Commission for Environmental Cooperation, which was set up under the North American Free Trade Agreement. But as the Great Lakes Radio Consortium’s Dan Karpenchuk reports, one trend being noted is that smaller industries across the continent are becoming the big polluters:
Transcript
A recent study on pollution in North America shows a drop in environmental pollution between
1995 and 2000. The study was conducted by the Commission for Environmental Cooperation,
which was set up under the North American Free Trade Agreement. But as the Great Lakes
Radio Consortium’s Dan Karpenchuk reports, one trend being noted is that smaller industries
across the continent are becoming the big polluters:
Officials for the Commission say it’s a good news-bad news picture of what’s going on across the
continent. The environmental watchdog says the biggest polluters such as electrical generating
plants and steel factories are releasing fewer hazardous chemicals. But smaller industries, who
have tended to pollute less are showing a significant increase in their emissions.
Victor Shantora is with the Commission.
“The smaller polluters, probably about 15,000 such facilities across North America, are actually
tracking upwards. And we think that that’s problematic.”
The study shows a seven-percent decline in the amount of toxins released by big industries from
1998 to 2000, while the smaller polluters showed a 32-percent increase over the same period.
Environmental groups like the Sierra Club say negative publicity has shamed the big polluters
into cutting down on emissions. They say that hasn’t worked against the small polluters. So it’s
up to governments to force them to make the reductions.
For the Great Lakes Radio Consortium, I’m Dan Karpenchuk.
Two Great Lakes states and one Canadian province are near the top of the list when it comes to the production of toxic chemicals. That’s the finding of the latest study from an international agency set up under NAFTA. The Great Lakes Radio Consortium’s Bill Cohen reports:
Transcript
Two Great Lakes States and one Canadian province are near the top of the list when it comes to
the production of toxic chemicals. That’s the finding of the latest study from an international
agency set up under NAFTA. The Great Lakes Radio Consortium’s Bill Cohen reports:
If you want to find the largest producers of dangerous chemicals in all of North America, look no
further than the Great Lakes Region. Officials from the Commission for Environmental
Cooperation say coal-fired power plants, steel mills, and waste treatment facilities put the region
high on the list.
Victor Shantora is director of the agency:
“The ranking is Texas number 1, Ohio number 2, the province of Ontario is number 3, and
Pennsylvania is number 4. They represent over about 25% of total releases in North America.”
Among the toxic chemicals cited are hydrochloric acid, sulfuric acid, and mercury. But the report
isn’t all bad news. It indicates while some of the toxic chemicals wind up as pollution in the air,
water, and soil, a growing amount of it is simply being transported for proper disposal in
landfills or for recycling.
For the Great Lakes Radio Consortium, I’m Bill Cohen in Columbus.
The Coast Guard cutter Sundew was built in 1944
in Duluth as a "buoy tender." In 1979, the Coast Guard had the ship's hull reinforced and beefed up its engine so the ship could double as an icebreaker. Photo by Chris Julin.
Cargo ships are moving on the Great Lakes, but Coast Guard icebreakers are still on duty on the north side of the Lakes. The Coast Guard’s massive icebreaker, the “Mackinaw,” smashed ice from its home in Michigan all the way across Lake Superior to Duluth. And the Coast Guard cutter “Sundew” has been chipping away at the ice in Duluth for weeks. The Great Lakes Radio Consortium’s Chris Julin has this report:
Transcript
Cargo ships are moving on the Great Lakes, but Coast Guard icebreakers are still on duty on the
north side of the Lakes. The Coast Guard’s massive icebreaker, the “Mackinaw,” smashed ice
from its home in Michigan all the way across Lake Superior to Duluth. And the Coast Guard
cutter “Sundew” has been chipping away at the ice in Duluth for weeks. The Great Lakes Radio
Consortium’s Chris Julin has this report:
There’s a whiff of spring in the air in lots of places, but parts of Lake Superior are still covered
with ice. Cargo ships are leaving their berths where they spent the winter. But when the first
ships got ready to go, the ice on the Duluth Harbor was still two feet thick. That’s thick enough to
keep a ship locked in place.
The Coast Guard cutter Sundew carved a path through the ice so ships could leave.
(sound of chop, splash)
As the Sundew churns away, slabs of ice tip on edge under the bow. Each slab looks like the
floor of a single-car garage turned on edge. The Sundew will cut a swath several miles long, and
then come back along the same path. With each pass, the shipping lane gets a little bit wider.
Bev Havlik is the commanding officer on the Sundew.
“We’re taking out just little shaved bits of it at a time to make the ice chunks smaller. It’s like
sawing a log, just shaving off a bit of it at a time.”
“The Sundew wasn’t built as an icebreaker. It’s usual duty is tending buoys. The ship places, and
maintains about 200 navigational buoys on Lake Superior. But a couple decades ago, the Sundew
got some extra steel added to its hull, and a new, bigger engine. Since then, it’s done double duty
as an icebreaker.”
Commander Bev Havlik says the Sundew slices through thin ice like a butter knife. But in
thicker ice, like this stuff, the hull actually rides up on top of the ice and pushes down through it.
That’s why there are three mini-van-sized chunks of concrete on the ship’s deck. Each one weighs
12,000 pounds.
“It helps us bite into it with the bow, instead of riding up too high.” It keeps the weight down
forward more.”
A little bit like putting sandbags in the back of your pickup in the wintertime?
“It’s a similar sort of principle, right. It gives you the bite you need.”
Icebreaking is serious business. It gets ship traffic moving weeks before the ice melts. But
beyond that, Bev Havlik says it’s really fun.
“This is awesome. It’s the only job that I’d ever had where they pay us to come out and break
something.”
The Sundew is 180 feet long. That’s about the length of 10 canoes lined up end to end. It has
about 50 crew members. One of the junior crew members is usually at the wheel. The real
“driver” is an officer who’s standing 20 feet away, out on the deck through an open door. The
officer adjusts the ship’s speed, and calls out a steady stream of steering commands to the
“helmsman” — that’s the guy at the wheel.
(sound of Helsman)
“Right five-degrees rudder … steady as she goes, aye.”
Ensign Jason Frank is about to take his turn driving the Sundew. He wears a big rabbit fur hat
when he’s out on the deck driving the ship.
“We actually have face masks and goggles for when it really gets cold. It gets so cold out here
sometimes it feels like your eyes are going to freeze out, or something.”
(natural sound)
Jason Frank is halfway through his two-year stint on the Sundew. Then he’ll be stationed
somewhere else, and the Sundew will be removed from service. The ship was built in Duluth in
1944, and it’s retiring next year. Jason Frank wanted to work on the Sundew because aren’t many
ships like this still in service. On newer vessels, the officer driving the ship stands inside. And
here’s something right out of the movies – the Sundew has a big, brass steering wheel.
“Whereas with the new ships, most the new ships have just a little joystick. It’s very similar to
like a joystick you’d have maybe when you’re playing a computer game or something. All you
have to do is turn that joystick and the computer tells the rudder what to do. We’re actually
maneuvering the throttles, we’re actually driving. With the new ship, basically it has an
autopilot.”
The ice is melting in the Duluth Harbor, but it still clumps together on windy days and makes
trouble for ships. The Coast Guard cutter Sundew will stay on ice-breaking duty until the
weather warms up, and a good southwest wind pushes the rest of the ice out of the harbor into
Lake Superior.
For the Great Lakes Radio Consortium, this is Chris Julin.
Tougher environmental laws and concern for students are prompting many schools to consider new ways of teaching chemistry and other sciences. The Great Lakes Radio Consortium’s Tom Rogers reports:
Transcript
Tougher environmental laws and concern for students are prompting many schools to consider
new ways of teaching chemistry and other sciences. The Great Lakes Radio Consortium’s Tom
Rogers reports:
Teachers in Illinois are being introduced to what’s being called “green chemistry” – using much
smaller amounts of hazardous chemicals – or none at all – to conduct experiments for
demonstration.
Bill Nelson is a chemical process specialist with the University of Illinois. He says not only is
green chemistry safer for students, it won’t leave behind a legacy of chemicals needing disposal.
Nelson says there’s no reason to worry that students won’t get the full impact of working with
larger supplies of chemicals.
“Students will be taught a healthy respect for chemicals, but what we’re trying to do is limit the
chemicals that are used in the classroom laboratories to as minimal as possible so that down the
road we don’t face the difficulties oftentimes we face now with disposal.”
Nelson says one prime example is mercury – it was widely used in classrooms until it was linked
to a variety of illnesses. Now schools are trying to roundup old mercury supplies and dispose of
them properly.
For the Great Lakes Radio Consortium, I’m Tom Rogers.
The state legislature in Minnesota is looking at a bill that would restrict phosphorus levels in automatic-dishwashing detergents. Supporters say it would reduce harmful algae blooms in lakes and streams. If the bill passes, it would be the first state to make such restrictions. The Great Lakes Radio Consortium’s Christina Shockley reports:
Transcript
The state legislature in Minnesota is looking at a bill that would restrict phosphorus levels in
automatic-dishwashing detergents. Supporters say it would reduce harmful algae blooms in lakes
and streams. If the bill passes, it would be the first state to make such restrictions. The Great
Lakes Radio Consortium’s Christina Shockley reports:
Phosphorus in detergents helps to clean dishes, but when the mineral ends up in lakes and
streams, it promotes algae blooms. Large algae blooms can kill fish and restrict sunlight to
bottom-rooting plants. In the 1970s, phosphorus was restricted in other types of detergents.
David Mulla is a professor in the soil, water, and climate department at the University of
Minnesota. He says that legislation did make a difference.
“We had a very large reduction in the amount of phosphorus that was being emitted to our waste
water treatment plants as a result.”
However, Mulla says dishwashing detergents are not one of the primary sources of phosphorus in
lakes and streams today. Detergent manufacturers say if they don’t use phosphorus, their
detergents might not meet some health standards. They also say a reduction won’t have any
environmental benefits. The bill is currently being discussed in the state legislature.
For the Great Lakes Radio Consortium, I’m Christina Shockley.
