The research also shows that 55% of the public has heard nothing at all about the cap and trade legislation. (Photo courtesy of the Architect of the Capitol)
A new survey indicates fewer
people think global warming
is a serious problem. Lester
Graham reports many still
think companies should reduce
greenhouse gas emissions:
Transcript
A new survey indicates fewer
people think global warming
is a serious problem. Lester
Graham reports many still
think companies should reduce
greenhouse gas emissions:
The Pew Research Center for the People and the Press surveyed 1500 people, asking what they thought about global warming.
Carroll Dougherty is the Center’s Associate Director. He says there’s growing public skepticism about climate change.
“What we found was a sharp decline in the percentage of Americans who say there was solid evidence that the earth was warming. 71% said that in April of ’08 and it’s down to 57% in the survey we released a few days ago.”
Fewer Republicans and Democrats says they see evidence of climate change, but the biggest decline was among independent voters.
Despite the skepticism, half of all those polled by Pew are still in favor of setting limits on carbon dioxide emissions and making companies pay for their emissions even if that might mean higher energy prices.
A team of scientists has found fossils that connect a six-million year gap in the chain of human evolution. The GLRC’s Tana Weingartner reports:
Transcript
A team of scientists has found fossils that connect a six-million year gap
in the chain of human evolution. The GLRC’s Tana Weingartner reports:
Scientists found fossils of the species Australopithecus Anamensis in
Ethiopia. The fossils are just over four million years old. Researchers
say the fossils are a clear link between two previously known species of
ape-man.
Dr. William Hart is a team member and a Professor of Geology at Miami
University in Ohio.
“It really shows us evidence of the way early humans evolved in terms of
characteristics of their teeth, as eating habits changed. How other aspects
of their anatomy evolved through time. This is the first time we’ve had
that kind of a snapshot really.”
Similar fossils were first found in Kenya in the 1990’s, but Hart says this
find is special because the fossils are sandwiched between fossils from
the other two species.
Many scientists are finding that much of the Arctic's ice cover could melt by the end of this summer. However, the Bush Administration cites a few reasons why compliance with the Kyoto treaty is still not a favored option. (Photo by Michael Slonecker)
Despite warnings that global warming is causing the
Arctic to warm up at twice the rate of the rest of the world, the Bush administration is not changing its policies on emissions in the U.S. The Great Lakes Radio Consortium’s Lester Graham reports:
Transcript
Despite warnings that global warming is causing the Arctic to warm up at twice the
rate of the rest of the world, the Bush administration is not changing its policies
on emissions in the U.S. The Great Lakes Radio Consortium’s Lester Graham reports:
Earlier this month 300 scientists presented a four-year study that concluded the
Arctic was warming up right now. The report indicated the northern ice cap was already
diminished by 15 to 20 percent, and by the end of this century half of the Arctic’s summer
ice cover would be melted and polar bears could be nearly extinct. The study predicted that
the wildlife in the Arctic and the people who depended on it for food would be in dire straits.
But even with the new evidence that the Arctic is facing worse warming than first predicted,
the Bush adminsitration is not changing its course. The White House has indicated the U.S.
would lose too many jobs and have to restrict its economy more than other nations such as
China and India if it were to adhere to the Kyoto global warming treaty. So far, the Bush
administration has agreed only to fund further research on the issue.
For the Great Lakes Radio Consortium, this is Lester Graham.
For a long time, anything any diver salvaged could be claimed as his or her own. Since the Abandoned Shipwreck Act of 1987, anything divers find on public land remains public. But a new discovery may bend some rules. (Photo courtesy of NOAA)
A shipwreck hunter believes he might have found what’s been described as the Holy Grail of Great Lakes wrecks. His find has triggered a new debate over who can lay claim to historic shipwrecks and what should happen to them. The Great Lakes Radio Consortium’s Sally Eisele reports:
Transcript
A shipwreck hunter believes he might have found what’s been described as the Holy Grail of Great Lakes wrecks. His find has triggered a new debate over who can lay claim to historic shipwrecks and what should happen to them. The Great Lakes Radio Consortium’s Sally Eisele reports:
Of the thousands of shipwrecks in the Great Lakes, the wreck of the Griffin is probably the most legendary. For a few reasons. She was built by somebody legendary – French explorer Rene-Robert Cavalier Sieur de La Salle, she was the first European ship to sail the Upper Great Lakes… and she was the first to sink. Actually, she sank on her maiden voyage in 1769, not exactly one of La Salle’s bigger success stories. But the mystery she left behind is pretty big – and it has pretty well flummoxed Great Lakes historians for hundreds of years. Shipwreck scholar Steven Herald is the director of the Manistee County Historical Museum.
“The Griffin loaded its first and only freight cargo downbound at Green Bay, and there has never been a reliable report of anyone who has seen the vessel since. It left Green Bay and disappeared totally.”
Did she run aground? Sink to the bottom of Lake Michigan? No one knows, But Steven Libert, a long-time shipwreck hunter, thinks he might have found a clue. What he’s excited about appears to be a long, wooden pole sticking out of the sand in about 80 feet of water in northwestern Lake Michigan. It doesn’t look like much. But Rick Robol, the attorney for Libert’s company Great Lakes Exploration, says tests indicate it could date back to the 17th century. And it could be part of a ship.
“Great Lakes Exploration does not know at this point what is there. And it does not know whether in fact it is the Griffin or not. Certainly if it were the Griffin, it would be a very substantial find.”
Great Lakes Exploration has filed suit in federal court seeking salvage rights to the site. But the site is in Michigan waters and the state has filed a motion to have the case dismissed. State archaeologist John Halsey says whatever there is should belong to the public, not a private company.
“They have the money to go out and look, they have the money to go out and find, but what they don’t have is the permission to bring stuff up. That’s where the rubber meets the road.”
The state argues the Federal Abandoned Shipwreck Act of 1987 gives any state title to historic wrecks in its waters. Before its passage, pretty much anybody in a rubber suit could salvage shipwrecks. And they did – the evidence is rusting out in garages across the country. The federal law sought to protect these historic sites – which, in the cold fresh water of the Great Lakes, are often well-preserved time capsules. But Wisconsin shipwreck researcher, Brendon Baillod, says a number of cases have already shown the law is full of technical loopholes if you have the money and time to challenge it.
“We have a lot of wrecks that are open game legally. It really is up to the judge who gets the case before them.”
If Great Lakes Exploration does clear the legal hurdles, the next question will be academic. What should happen to their findings? Attorney Rick Robol says it all depends on what’s there.
“Really, shipwrecks have to be dealt with on a case by case basis. There are some shipwrecks that may best remain in situ, that is, on site, and there are other that should be recovered. It’s impossible to determine what’s best for a particular wreck without first scientifically studying it.”
At this stage, it’s anybody’s guess as to whether the site contains the remains of a ship or just a pile of very old scrapwood. But preservationists such as historian Steven Herald, argue anything of historical value should really just be left there.
“I’m a great one for leaving it where it is and studying it in as much detail as possible. The easiest way to preserve it is to keep it there.”
One thing is certain, any excavation would likely involve many years and millions of dollars. Oh, and there’s another possibility too, if in fact the Griffin is found. Technically, the vessel still belongs to France, which was in charge around here after all at the time of La Salle’s adventures.
For the Great Lakes Radio Consortium, I’m Sally Eisele.
The Duluth Seaway Port Authority's bulk cargo dock is typical of many in the port. Officials are troubled by corrosion appearing on the docks in the harbor - the steel is corroding much faster than normal. (Photo by Bob Kelleher)
A piece of steel that has been removed from a dock
wall, showing extensive pitting. (Photo by Bob Kelleher)
Engineer and diver Chad Scott (left) discovered the dock corrosion in the late 1990's, and suspects a microbiological connection. Jim Sharrow (right), Duluth Seaway Port Authorities Facilities Manager, is hoping for some fast answers. (Photo by Bob Kelleher)
Corrosion is eating away at the steel walls that hold one of the Great Lakes’ busiest harbors together. The corrosion is unlike anything known to be happening in any other Great Lakes port. But other port officials are being encouraged to take a closer look at their own underwater steel. The Great Lakes Radio Consortium’s Bob Kelleher reports:
Transcript
Corrosion is eating away at the steel walls that hold
one of the Great Lakes’ busy harbors together. The
corrosion is unlike anything known to be happening in
any other Great Lakes port. But other port officials
are being encouraged to take a closer look at their own
underwater steel. The Great Lakes Radio Consortium’s
Bob Kelleher reports:
Some kind of corrosion is eating away at the Duluth
Seaway port’s docks. The docks are those long
earth-filled metal rectangles where ships from around
the world tie up to load and unload. Those docks are
lined with sheets of steel, and the steel is rusting
away. Jim Sharrow is the Duluth
Seaway Port Authorities Facilities Manager.
“It’s corroding quickly – much faster than people expect
in fresh water. And our main concern is that we’ll lose
the integrity and the strength of the dock long before
expected, and have to do steel replacement at $1,500 or
more per lineal foot, much earlier than ever would have
been expected.”
Corrosion should be a slow process in Duluth’s cold
fresh water. But, Sharrow says, there’s evidence it’s
been happening remarkably quickly for about thirty years.
“What we seem to see here is corrosion that started in
the mid 1970s. We have steel that’s 100 years olds
that’s about as similarly corroded to steel that is 25
to 30 years old.”
It’s a big problem. There’s about thirteen miles of
steel walls lining docks in the harbor that serves
Duluth, Minnesota and Superior, Wisconsin. There’s half
again as many feet of wooden docks, held together with
steel pins. There’s corrosion on the legs of highway
bridges and the giant
steel ore docks that ship millions of tons of taconite
– a type of iron shipped to steel mills in Gary,
Indiana and Cleveland, Ohio.
“We characterize this as a 100-million dollar problem in
the harbor. It’s a huge problem, and what is so odd
about this is that we only see it happening in the
navigational area of the Duluth-Superior Harbor.”
The harbor links the St Louis River with Lake Superior.
Go a few miles up the river and there’s little corrosion
. So it doesn’t seem like the problem’s there. But, back
in the harbor, at the current rate of corrosion, Sharrow
says, the steel will fail quickly.
“I figure that in about 10 years at the current rate,
we will have to start replacing steel.”
“Particularly marginal operators could decide rather
than repair their docks it would be better for them to
go out of business, and we’re hoping that that isn’t
the case here.”
While the cause is a mystery, there’s no shortage of
theories. It could have something to do with stray
electrical voltage; water acidity; or the kinds of
steel manufactured in recent years. Chad Scott
discovered the corrosion in the late 1990’s. He’s an
engineer and a diver. Scott suspects
a micro-biological connection. He says there might be
something growing in small round pits that form on the
steel.
“We cleaned up the water. That’s the main thing –
that’s one of the main changes that’s happened since
the 70s, is we’ve cleaned up our water. We’ve cleaned
up our harbor, which is a good thing. But, when we
cleaned things up we also induced more dissolved oxygen
and more sunlight can penetrate the water, which tends
to usually promote more growth – more marine
microbiology growth.”
A team of experts met in Duluth in September to share
ideas. They came from the U.S. Navy, The Army Corp of
Engineers, and Ohio State University. And they agreed
there’s something odd going on – possibly related to
microbes or water chemistry. They also recommend that
other Great Lakes ports take a closer look at their
underwater steel. Scott says they at least helped
narrow the focus.
“We have a large laundry list right now. We want to
narrow that down and try to decide what is the real
cause of this corrosion. And these experts, hopefully,
will be able to get us going on the right direction,
so we can start doing testing that will identify the
problem.”
With the experts recommendations in hand, port
officials are now planning a formal study. If they
do figure out the cause, then they’ve got to figure
out how to prevent it. They’re in a race with
something, and right now they don’t even know with
what.
For the Great Lakes Radio Consortium, I’m Bob Kelleher.
A group called Scientists and Engineers for Change is touring battleground states, campaigning against the Bush Administration.
(Photo by Emanuel Lobeck)
A group of prominent American scientists, including 10 Nobel prize-winners, will bring a campaign against the Bush Administration to key battleground states in the region. The group says the President has misused and marginalized scientific research. The Great Lakes Radio Consortium’s David Sommerstein reports:
Transcript
A group of prominent American scientists, including 10 Nobel prize-winners,
will bring a campaign against the Bush Administration to key battleground states
in the Great Lakes. The group says the President has misused and marginalized
scientific research. The Great Lakes Radio Consortium’s David Sommerstein reports:
The political advocacy group formed last week is called Scientists and Engineers for
Change. Stanford University professor Douglas Osheroff is a member. He won the Nobel
Prize for physics in 1996. He says the Bush Administration is compromising scientific integrity.
“Having scientists reporting to middle-level bureaucrats who simply don’t have the background
to assess what the scientists are saying and he, of course, has essentially put a gag order
on scientists that are paid by the government directly. They are really not free to say what
they want.”
Osheroff also says President Bush and Vice President Cheney’s ties to the oil industry have
led them to minimize evidence of climate change.
Members of the Scientists and Engineers for Change will speak in Battleground states
like Michigan, Ohio, and Pennsylvania this month.
The group has no direct ties to Senator John Kerry’s campaign. The Bush campaign hasn’t
responded to the group’s claims.
For the Great Lakes Radio Consortium, I’m David Sommerstein.
Believe it or not, this is the hot new trend in seafood. The Patagonian Toothfish was given a more marketable name: Chilean Sea Bass.
(Photo courtesy of National Environmental Trust)
A popular fish at restaurants has become too popular. According to one environmental group, Chilean Sea Bass is being illegally overharvested. The Great Lakes Radio Consortium’s Lester Graham reports:
Transcript
A popular fish at restaurants has become too popular. According to one environmental
group, Chilean Sea Bass is being illegally overharvested. The Great Lakes Radio
Consortium’s Lester Graham reports:
Chilean Sea Bass has been the fish of choice for many chefs’ signature dishes. That has
driven up prices for the fish. Andrea Cavanaugh is with the environmental group the National
Environmental Trust. She says the group has found evidence that illegal Chilean Sea Bass is
ending up on your plate.
“Pirate boats that are out on the high seas flaunt the guidelines, [do] not listen to quotas,
they can take fish where they’re not supposed to take fish and nobody is out there monitoring
what’s going on on individual vessels.”
Cavanaugh says besides needing tighter international and national guidelines on fishing, the best
way to deal with the problem is to get people to stop ordering Chilean Sea Bass.
“There’s such a wide range of fish to choose from for American consumers that there should
be a healthy balance out there.”
Cavanaugh says the Chilean Sea Bass is only the latest species to be overharvested to meet a
hot trend in food.
For the Great Lakes Radio Consortium, this is Lester Graham.
The research also shows that 55% of the public has heard nothing at all about the cap and trade legislation. (Photo courtesy of the Architect of the Capitol)
