More Oceanic Garbage Patches Found

  • Marine researcher Marcus Eriksen says the plastic packaging that wraps nearly all consumer products is killing some marine animals.(Photo courtesy of the NOAA Marine Debris Program)

A giant field of plastic debris is floating in the middle of the northern Pacific Ocean. Now researchers are finding more of these garbage patches in other Oceans. Mark Brush has more:

Transcript

A giant field of plastic debris is floating in the middle of the northern Pacific Ocean. Now researchers are finding more of these garbage patches in other Oceans. Mark Brush has more:

Researchers say there are ocean currents that sort of swirl around like water in a toilet bowl. There called oceanic gyres.

The Algalita Marine Research Foundation was one of the groups that documented the problem in the North Pacific Ocean. This year they sailed to the gyres in the North Atlantic and in the Indian Ocean.

They found miles and miles of plastic fishing line, milk crates, spoons and forks, and bits of plastic bags.

Marcus Eriksen is with the group:

Eriksen: I challenge you to walk into Wal-Mart or a K-Mart and find a product that’s not made from plastic, packaged or labeled with plastic. And we’re finding more and more of this debris being lost onto the ground washing down rivers and streams out to sea.

Eriksen says the plastic is killing some marine animals. Fish, birds, turtles, and whales get tangled up in the mess – or they mistake it for food.

For The Environment Report, I’m Mark Brush.

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Acidic Oceans Dissolving Shellfish Industry

  • Oceanographer Richard Feely says the shellfish industry is suffering in part because the more acidic seawater encourages the growth of a type of bacterium that kills oyster larvae.(Photo courtesy of the NOAA)

When carbon dioxide is released into the atmosphere, about a third of it absorbs into the ocean. That creates carbonic acid—the stuff in soda pop that gives it that zing.

That means seawater is becoming more acidic.

Scientists say this ocean acidification is starting to cause big problems for marine life. And Ann Dornfeld reports that could affect your dinner plans.

Transcript

When carbon dioxide is released into the atmosphere, about a third of it absorbs into the ocean. That creates carbonic acid—the stuff in soda pop that gives it that zing.

That means seawater is becoming more acidic.

Scientists say this ocean acidification is starting to cause big problems for marine life. And Ann Dornfeld reports that could affect your dinner plans.

Taylor Shellfish Farms has been growing oysters for more than a
century. And shucking them, one by one, by hand.

“An old profession. Y’know, they’ve tried for years to
find a way to mechanize it. There’s no way around it. Every oyster is
so unique in its size and shape.”

Bill Dewey is a spokesman for Taylor. The company is based in
Washington state. It’s one of the nation’s main producers of farmed
shellfish. Dewey says if you order oyster shooters in Chicago, or just
about anywhere else, there’s a good chance they came from Taylor.

But in the past couple of years, the company has had a hard time
producing juvenile oysters – called “seed.”

“Last year our oyster larvae production was off about 60
percent. This year it was off almost 80 percent. It’s a huge impact to
our company and to all the people that we sell seed to.”

Shellfish growers throughout the Pacific Northwest are having similar
problems with other kinds of oysters, and mussels, too. They suspect a
lot of it has to do with ocean acidification.

Richard Feely is a chemical oceanographer with the National Oceanic
and Atmospheric Administration. He says when the pH of seawater drops
too low, it can hurt marine life.

“What we know for sure is that those organisms that
produce calcium carbonate shells such as lobsters, and clams and
oysters, and coral skeletons, they generally tend to decrease their
rate of formation of their skeletons.”

Feely says it looks like acidified waters are affecting oysters
because their larvae build shells with a type of calcium carbonate,
called aragonite, which dissolves more easily in corrosive water.

The more acidic seawater also encourages the growth of a type of
bacterium that kills oyster larvae.

Feely says the changes in the ocean’s pH are becoming serious. He
recently co-published a study on the results of a 2006 research cruise
between Hawaii and Alaska. It was identical to a trip the researchers
took in 1991. They found that in just 15 years, the ocean had become
five to six percent more acidic as a result of man-made CO2.

“If you think about it, a change of 5% in 15 years is a
fairly dramatic change. and it’s certainly humbling to see that in my
lifetime I can actually measure these changes on a global scale. These
are very significant changes.”

A couple years ago, Feely gave a talk at a conference of shellfish
growers. He explained the impact ocean acidification could have on
their industry. Bill Dewey with Taylor Shellfish Farms was there.

“All these growers were walking around with all these
really long faces, just very depressed. I mean it was a very eye-opening presentation and something that’s definitely had growers
paying attention since, that this could be a very fundamental problem
that we’re going to be facing for a long time to come.”

Dewey calls shellfish growers the “canary in the coalmine” for ocean
acidification.

Scientists say if humans don’t slow our release of CO2 into the
atmosphere, shellfish may move from restaurant menus into history
books.

For The Environment Report, I’m Ann Dornfeld.

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Birds Threatened by Warming Climate

  • Rising sea levels are infringing on the habitats of coastal birds. (Photo courtesy of the US Fish and Wildlife service)

Wildlife researchers say that many coastal birds and birds that live around the oceans are threatened by a warming climate. Mark Brush has more on the State of the Birds report:

Transcript

Wildlife researchers say that many coastal birds and birds that live around the oceans are threatened by a warming climate. Mark Brush has more on the State of the Birds report:

The report was put together by the US Fish and Wildlife Service along with state wildlife agencies and other researchers. It finds birds that rely on low-lying islands and other coastal habitats are most at risk from a warming climate. The researchers say these birds are in danger because of rising sea levels. And because the birds are having a tougher time finding the creatures they feed on. They say these kinds of birds would have a hard time finding new places to live.

Ken Salazar is the U.S. Secretary of the Interior. The agency was in charge of publishing the report:

“For too long, in my view, we have stood idle as the climate change crisis has grown. I believe that what this State of the Birds report indicates is that we are at a point in time in our history in America where there is a call to action.”

The report adds to research that shows a third of the nation’s bird species are endangered, threatened or in significant decline.

For The Environment Report, I’m Mark Brush.

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Arctic Ocean Methane

  • A recent study shows the arctic seabed is releasing up to ten-million tons of methane annually. (Photo Courtesy of Patrick Kelley, U.S. Coast Guard)

New research indicates the Arctic seabed is releasing methane at a rate higher than all the other oceans of the world combined. This recent discovery raises concerns about the pace of global warming. Lester Graham reports:

Transcript

New research indicates the Arctic seabed is releasing methane at a rate higher than all the other oceans of the world combined. Lester Graham reports, this recent discovery raises concerns about the pace of global warming.

Under a shallow part of the Arctic Ocean, the seafloor was thought to be permanently frozen, capping vast stores of methane underneath. Researchers at the University of Alaska Fairbanks have found that frozen cap is beginning to leak large amounts of methane into the atmosphere. Natalia Shakhova is one of the leaders of a team that’s been studying the permafrost under the Arctic Ocean.

“What we’re having now, it’s up to ten-million ton[s] of methane annually escaping from this seabed. That means that permafrost does not serve as an impermeable cap to prevent these leakages any longer.”

Methane is a greenhouse gas 30 times more potent than carbon dioxide. The greatest concern about methane releases had been the permafrost on land… but this underwater release could mean climate changes could accelerate.

For The Environment Report, I’m Lester Graham.

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CO2 Eats at Ocean Creatures

  • Healthy Reef Systems May Be a Thing of The Past(Photo courtesy of Mikael Häggström)

Some scientists think we might be headed for a mass extinction event
in the oceans. When carbon dioxide gets released into the atmosphere,
a lot of that CO2 soaks into the oceans. That makes the water more
acidic. When the pH gets too low, it dissolves the skeletons of
animals like coral and mussels. Ann Dornfeld reports:

Transcript

** The story as originally broadcast incorrectly referred to the publication as “Natural Geoscience.” It should be “Nature Geoscience.”

Some scientists think we might be headed for a mass extinction event
in the oceans. When carbon dioxide gets released into the atmosphere,
a lot of that CO2 soaks into the oceans. That makes the water more
acidic. It can dissolve the skeletons of
animals like coral and mussels. Ann Dornfeld reports:

Fifty-five million years ago, a mass extinction happened when the
oceans became too acidic.

Richard Feely is a chemical oceanographer for the National Oceanic and
Atmospheric Administration. He says that today’s ocean acidification
is happening too quickly for many species to adjust.

“Over the last 200 years we’ve seen a 30-percent increase in acidity
of the oceans, and about six percent of that increase of acidity of
the oceans has been in the last 15 years.”

Researchers at the University of Bristol in England ran simulations of
the acidification processes 55 million years ago and today. They found
that acidification is happening ten times faster these days than it
did before the prehistoric mass extinction.

That could mean that if we don’t slow our release of CO2 into the
atmosphere, life in our oceans could crash within a century or two.
The study is published in the journal of Nature Geoscience.

For the Environment Report, I’m Ann Dornfeld.

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Diving for Cures

  • Researchers are hoping to find cures underwater in corals and sponges. (Photo courtesy of NOAA)

Making medicine from things
found in nature isn’t a new
idea. Think, aspirin – which
originally came from the bark
of willow trees. Now drugs
derived from ocean animals are
slowly making their way onto
shelves. Samara Freemark talks to a researcher
who helps get them there:

Transcript

Making medicine from things
found in nature isn’t a new
idea. Think, aspirin – which
originally came from the bark
of willow trees. Now drugs
derived from ocean animals are
slowly making their way onto
shelves. Samara Freemark talks to a researcher
who helps get them there:

Mark Slattery is trying to find a cure for cancer. Slattery is a pharmacology professor at the University of Mississippi. But he doesn’t really spend much time in the lab. Instead, he’s usually in a wetsuit, scuba diving off the coasts of places like Guam and Antarctica.

He’s taking samples from tens of thousands of corals and sponges. He’s looking for that one special species that might make a chemical that could cure disease. He calls it, ‘diving for cures.’

“In many ways, it’s like going out and playing your super lotto or whatever. You pick your eight numbers and you see if you hit or not.”

The idea is pretty simple. A third of the medicines on shelves today were derived from plants and animals that live on land. So ocean researchers got to thinking that the organisms they studied probably also produced a lot of useful chemicals.

Take corals and sponges. They can’t run away from predators, so instead they squirt out chemicals that poison the fish that try to take a bite out of them. Marc Slattery says those toxins are bad for the fish – but they could be good for people.

“Those particular compounds that tell a fish “not today” are the same ones that might tell the AIDS virus “you can’t replicate” or tell a cancer cell “you’re dead” or those kinds of things.”

So Slattery and other researchers like him clip off bits of sponges and corals. When they get back to the lab they extract the chemicals, which is a nice way of saying…

“Stick it in a blender with methanol and ethyl acetate and hexanes and all those sorts of things you used in organic chemistry lab, and you throw away the dead sponge, and the tarry residue that’s left is sort of the biochemistry that came out of that sponge.”

“So you make a sponge smoothie?”

“Exactly.”

Once they’ve extracted the chemicals, researchers test to see if they have any human application. If a compound looks promising, it moves on to clinical trials. Those trials can take decades, which is why ocean-derived drugs are only now starting to hit the market. So far only two have been approved for use in the United States: a painkiller, and a cancer drug marketed by Johnson and Johnson.

I wondered how ocean conservationists felt about diving for cures. So I called up Sandra Brooke. She studies corals at the Marine Conservation Biology Institute. Brooke says she does worry that diving for cures could lead to over-harvesting.

“Once something becomes valuable to people, there’s a resistance to closing access to it. It becomes harder to regulate it.”

But she says corals are under much greater and much more immediate threats. The biggest culprit is industrial trawling. That’s when fisherman scrape reefs off the ocean floor so they can get to the fish.

“It’s just like the clear cutting of the forest, but on a much vaster scale. They are deliberately mowing down these deepwater coral ecosystems that are thousands and thousands of years old – some of the oldest animals ever measured. And that’s not going to come back – not in our lifetimes, not in many lifetimes.”

There’s also the fact that oceans are changing as the climate does. Those changes mean corals are becoming weaker. Marc Slattery thinks he might be seeing that in a Pacific reef he’s been studying for fifteen years.

“When we went back and started looking at it, we noticed that there was a change in the chemistry through time. As things have heated up on the reefs, there’s a physiological effect that has cascaded down into their ability to produce the chemistry we’re used to seeing. Early on it was so apparent, it was always there, and now they seem to be able to produce less of it.”

That’s means that today the cure for cancer might be out there in some coral reef, but it could be gone tomorrow.

For The Environment Report, I’m Samara Freemark.

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NOAA Looks Into Navy Sonar

  • Critics of sonar say it’s so loud that it confuses whales and other marine animals, and can cause them to be injured or even die. (Photo courtesy of NOAA)

A new federal ruling could
protect marine animals by
changing how and where
the Navy uses sonar. Samara Freemark reports:

Transcript

A new federal ruling could
protect marine animals by
changing how and where
the Navy uses sonar. Samara Freemark reports:

Critics of sonar say it’s so loud that it confuses whales and other marine animals, and can cause them to be injured or even die. That’s why environmental groups have been pushing for tighter regulations on the technology.

This week the National Oceanic and Atmospheric Administration, or NOAA, took a step in that direction. The agency acknowledged that current policies are not doing enough to protect marine mammals. And NOAA says it will identify critical marine habitats impacted by sonar.

Michael Jasny is a policy analyst with the environmental group the Natural Resources Defense Council. He hopes the policy will be a first step to banning sonar in those habitats.

“It’s not a prescription, it’s a plan. And it sets in motion potentially a very significant change. I mean, the proof will be in the pudding, of course.”

Jasny says his organization will work with NOAA and the Navy to negotiate sonar policy so that marine mammals are not hurt.

For The Environment Report, I’m Samara Freemark.

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Counting the Fish in the Sea

  • Researchers at the Census for Marine Life have spent the past decade counting fish. (Photo courtesy of NOAA)

You’ve heard there are lots
of fish in the sea, but nobody
knows exactly how many. That’s
what a project has been trying
to find out. Samara Freemark reports the results
will be out soon:

Transcript

You’ve heard there are lots
of fish in the sea, but nobody
knows exactly how many. That’s
what a project has been trying
to find out. Samara Freemark reports the results
will be out soon:

Researchers at the Census for Marine Life have spent the past decade counting fish. They want to get as accurate a count as possible of how many animals are in the sea.

The project is based at the University of Rhode Island, but 2000 scientists around the world are collaborating.

Darlene Crist works with the Marine Census. She says the project used a huge range of tools to sample fish populations: electronic tags, robots, cameras– as well as some pretty unconventional research methods.

“We’ve used old tax records, ship logs, even restaurant menus.”

Now Crist say they’re done counting and they’re starting to crunch numbers.

Researchers say the data will serve as the first baseline measure of life in the ocean. They hope it will help policymakers better manage the fish stocks that remain.

Full results will be available this fall.


For The Environment Report, I’m Samara Freemark.

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Wind on the Water

  • Energy developers are watching how the Cape Wind Project plays out. It could clear the way for more big wind farms off the coasts of places such as New York, Maryland, and Michigan. (Photo courtesy of the National Renewable Energy Laboratory)

A big shift to alternative energies
such as wind and solar will take a
change in thinking. One example is
the Cape Wind project. Cape Wind
plans to build one-hundred-thirty
windmills in the water. It would
be the country’s first off-shore
wind farm, but not everybody likes
it. Mark Brush reports the fight
over this wind farm could clear
the path for others:

Transcript

A big shift to alternative energies
such as wind and solar will take a
change in thinking. One example is
the Cape Wind project. Cape Wind
plans to build one-hundred-thirty
windmills in the water. It would
be the country’s first off-shore
wind farm, but not everybody likes
it. Mark Brush reports the fight
over this wind farm could clear
the path for others:

Say you want to make some money putting up windmills. You need a place with lots of wind, lots of open space, and lots of people who will want to buy your power.

It turns out, Nantucket Sound off the east coast is an ideal setting.

Jim Gordon first proposed the Cape Wind Project in 2001. The windmills would be as tall as 40 story buildings. And could power hundreds of thousands of homes and businesses.

“Look, it’s not a question of Cape Wind or nothing. It’s a question of Cape Wind or a new nuclear plant or a new coal plant, or a heavy oil fired power plant.”

And that’s where people on Cape Cod get their power now – a power plant that burns oil. Boats making deliveries to the power plant have spilled oil into the water.

Jim Gordon thought it was a no-brainer. Replace dirty power plants with clean renewable energy.

But his plan ran into a bunch of opposition from rich and powerful people.

Roger Whitcomb wrote a book on the Cape Wind Project. Whitcomb said at a recent lecture that a lot of the opposition came from names we’re all familiar with – the Kennedys, the duPonts, and the Mellons.

“Most of these people were summer people. And they basically just didn’t want to look at these wind turbines, or the way they thought would look, because many of them had actually never seen a wind farm or a wind turbine. But they didn’t like the idea of anything violating the visual integrity of their horizon.”

There’s also some opposition from fisherman, some Indian tribes, and some locals who live on the islands. But Whitcomb says the bulk of the money for the fight against the Cape Wind Project comes from the rich and powerful.

Right now, those groups are challenging environmental reviews and permits in the Massachusetts Supreme Court. All these legal challenges – all these permitting hoops – put a damper on big projects.

Roger Whitcomb says we used to be a people who thought big. But that’s changed.

“It’s very difficult to do anything in the United States anymore. We’re way behind everybody else. This isn’t a can-do country anymore. There’s been a huge change. This is not where things are done.”

Energy developers are watching how the Cape Wind Project plays out. It could clear the way for more big wind farms off the coasts of places such as New York, Maryland, and Michigan.

And despite all the legal and political barriers, it looks like the country is closer than ever to seeing its first ever offshore wind farm built.

There’s a lot of popular support for the project in the region.

Ken Salazar heads up the Department of Interior. He told us this past spring he expects projects like Cape Wind will go forward.

“You know I expect that it will happen during the first term of the Obama Administration. I think that there is huge potential for wind energy off the shores of especially the Atlantic because of the shallowness of those waters.”

Siting big wind farms is a new kind of battle in this country. In some cases – like the Cape Wind project – energy development is moving closer to the wealthy.

Ian Bowles is the Secretary of the Energy and Environmental Affairs Department for the State of Massachusetts:

“Many of the dirty fossil plants of a generation ago were sited in cities and many times in environmental justice areas where there’s lower income residents. And I think today, you’ve got in many ways you have more wealthy set of opponents of wind power that is going to relieve the people who live in cities of some of the clean air burdens from siting decisions made a generation ago.”

That means some wind farms can change the game. They move power plants from the backyards of the poor, and into the views of the rich and powerful.

For The Environment Report, I’m Mark Brush.

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Flushing Out Unwanted Stowaways

  • A ship shown emptying its ballast tanks. (Photo courtesy of the United States Geological Survey)

Invasive species like the zebra mussel
have spread into lakes and rivers across
the country. But scientists are cautiously
optimistic they’re on the right track
to closing the front door to new invaders.
David Sommerstein reports:

Transcript

Invasive species like the zebra mussel
have spread into lakes and rivers across
the country. But scientists are cautiously
optimistic they’re on the right track
to closing the front door to new invaders.
David Sommerstein reports:

Most invasive species have snuck into American waters by hitchhiking in the ballast water of foreign ships. They cause billions of dollars of damage to economies and ecosystems.

Researcher David Reid keeps the official list of invasive species in the Great Lakes. He’s with the National Oceanic and Atmospheric Administration. He says a new invader hasn’t been found there since 2006, a period of three years.

“The last time that occurred in our records was in the 1950s.”

Reid has his fingers crossed.

A new rule requires ships to flush their ballast out in the ocean before entering American waters. Reid says it seems to be working.

“We’ve found that saltwater is really quite effective against most of types of organisms that are likely to survive fresh water.”

The invasive species problem is far from over. Researchers are testing out technology to kill critters that can live in saltwater, too.

For The Environment Report, I’m David Sommerstein.

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