Weather Modification Making It Rain

  • The cloud seeding generator sprays heated silver iodide into the air-which then acts like a magnet, attaching to ice particles until snow forms.(Photo courtesy of Christina Aanestad)

We need a lot of water. We use it to grow food, wash our cars and even make electricity at hydro-dams. But in some areas there might not be enough water. The federal government estimates places in 36 states might experience drought conditions by 2013.

So, scientists and power companies are looking at manipulating the weather to create more water. And, as Christina Aanestad reports the practice, called weather modification, is more common than you might think:

Transcript

We need a lot of water. We use it to grow food, wash our cars and even make electricity at hydro-dams. But in some areas there might not be enough water. The federal government estimates places in 36 states might experience drought conditions by 2013.

So, scientists and power companies are looking at manipulating the weather to create more water. And, as Christina Aanestad reports the practice, called weather modification, is more common than you might think.

“A mile and a half to go–we should see the cloud seeder.”

I’m traveling through the rugged terrain of Burney Falls, in northern California with Paul Moreno. He’s a spokesperson for Pacific Gas and Electric, one of the nation’s largest power companies and it wants to modify the weather in this remote area- it’s a process called cloud seeding.

“There it is……”

Energy companies, water districts and the federal government have conducted weather modification since the 1950’s. Today, it occurs in about a dozen states in the US-mostly the West and Midwest.

Moreno points to a large metal box.

“were’ looking at a cloud seeding generator that is off the ground about 12 feet on a steel platform and inside the cabinet is a tank that contains the silver iodide solution. The silver iodide solution is sprayed kind of atomized, like a perfume atomizer.”

This is how it works: the generator sprays heated silver iodide into the air-which then acts like a magnet, attaching to ice particles until snow forms. The purpose? More snow means more water and, more water means more power for Pacific Gas and Electric’s hydropower project.

At least… that’s the theory.

“It’s never been proven to actually work.”

Matt Ryan is a 25-year weather consultant.

“The idea that you can drug the sky into dropping more rain onto you is part of the problem in and of itself. Silver iodide which is the drug of choice throughout the cloud-seeding industry is a class-C toxic non-soluble inorganic chemical. When they say that it is Class C-You can’t flush this down the drain…it’s toxic.”

But not everyone thinks it’s a serious threat. Brant Foote heads the Research Applications Lab at the National Center for Atmospheric Research, in Colorado. He’s studied cloud seeding for decades.

“In general what we’ve shown is that health hazards of cloud seeding is negligible.”

But, Foote seems less certain about whether cloud seeding actually works.

“It’s been a tough nut to crack. There have been a lot of attempts to evaluate cloud seeding and more often than not with inclusive results, rather than with either negative or positive.”

Whether it works or not is beside the point to some. They just don’t like the idea. Mark Franco is headman for the Winnemum Wintu Tribe in Northern California. He doesn’t think people should be playing around with nature. He says instead of trying to artificially make precipitation, maybe we should be putting more effort into conserving water.

“One of the things people forget: when you’re running out of water, don’t use as much. Use water efficiently, people need take responsibility for the usage and waste of water.”

But, despite concerns about whether cloud seeding is a good idea… or whether it even works… some states support the science with millions of taxpayer dollars. And, utilities like Pacific Gas and Electric spend millions of ratepayer dollars on cloud seeding projects in the US.

For The Environment Report, I’m Christina Aanestad.

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How Many Calories Is That?

  • The study showed that in some cases, dishes had twice as many calories as they were supposed to. (Photo courtesy of the National Cancer Institute)

Counting calories is easier
to do now that more restaurants
are publicly posting calorie
information about their food.
But Samara Freemark
tells us why those numbers might
be misleading:

Transcript

Counting calories is easier
to do now that more restaurants
are publicly posting calorie
information about their food.
But Samara Freemark
tells us why those numbers might
be misleading:

18% – a new study says that’s the average amount that restaurants underreport the calories in their dishes.

Researchers at Tufts University analyzed the calorie content of meals from chain restaurants. Then they compared those numbers to the calorie counts posted publicly by restaurants on websites and menus.

Susan Roberts is the senior author of the study. She says in some cases, dishes had twice as many calories as they were supposed to.

“You just assume that the numbers are right, you don’t really think about, well, is this number only half what it really is? To have the calories on the web or in the restaurant, that would be a great thing. But they do have to be accurate.”

Roberts says the biggest culprit is portion size – restaurants serve larger amounts of food than advertised. She says the researchers also found that many restaurants served extra side dishes that weren’t included in posted calorie counts.

For The Environment Report, I’m Samara Freemark.

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Indoor Shrimp Farming: A New Market?

  • Russ Allen breeds and grows thousands of shrimp in a barn in his backyard. The entire process is contained. There's no water coming in or going out, and there's no waste leaving his farm. (Photo by Corbin Sullivan)

Recently, shrimp surpassed tuna as the most-consumed seafood in the United States. Most of the shrimp Americans eat is produced in Southeast Asia, India, Mexico and Brazil. Russ Allen wants to change that. He’s opened one of the world’s few indoor shrimp farms in the Midwest. Allen says his operation meets an obvious market demand, is good for the environment, and presents a new economic opportunity for the country. The Great Lakes Radio Consortium’s Erin Toner reports:

Transcript

Recently, shrimp surpassed tuna as the most-consumed seafood in the
United States. Most of the shrimp Americans eat is produced in
Southeast Asia, India, Mexico and Brazil. Russ Allen wants to change
that. He’s opened one of the world’s few indoor shrimp farms in the
Midwest. Allen says his operation meets an obvious market demand, is
good for the environment, and presents a new economic opportunity for
the country. The Great Lakes Radio Consortium’s Erin Toner reports:


In a big blue barn in Russ Allen’s backyard, there are thousands of
shrimp… beady-eyed, bacteria-munching, bottom-feeders.


Here, the life cycle of the shrimp starts in the breeding center, where
two big tanks of water mimic a place 150 feet deep off the shore of the
ocean where the water quality and temperature are stable. Allen says
it’s the perfect environment for shrimp to mate.


“Like in just about all animals the male chases the female, and they do a
little courtship dance, and then the male will deposit a spermatophore on
the female and when she spawns, the eggs pass through the
spermatophore, are fertilized and then go out into the water.”


A few months later, the shrimp end up in the production room where all
they do is eat, and sometimes, if they get excited or spooked, they jump
right out of their tanks.


“They don’t like light…”


“Oh (laughing)! Do you ever have them hit you as you’re standing
here?”


“Oh yeah, that’s why we have the nets up so they don’t jump.”


Russ Allen has been farming shrimp for three decades. He started in
Ecuador, and then went to Belize, where he started the country’s first
shrimp farms.


Allen and his wife moved back to Michigan in 1990, when he started
designing his indoor shrimp farm. It finally opened for business about a
year ago, and now, he’s selling all the shrimp he produces.


(Sound of shrimp market)


Allen says his indoor shrimp farm is one of the first of its kind in the
world. There’s no waste leaving his farm, so pollution’s not an issue,
and because there’s no water coming in or going out, there’s no danger
of introducing diseases into his system.


Allen says an indoor farm also moves shrimp farming away from fragile
coastal ecosystems. That’s where most of the industry has developed
around the world.


“In a place like the United States with all the development on the
coastline and land costs, you can’t really do it anywhere near the ocean
anyway. So, if you’re going to have a viable shrimp farming system in
the United States, you need to move it away from – you know – these coastal areas.”


But indoor farms haven’t always been a viable option, either.


In the 1980s, a handful of them opened in the U.S., including a big one in
Chicago. They all failed because the technology didn’t work quite right,
and because the cost of production made them unable to compete with
outdoor farms.


Bill More is a shrimp farming consultant and vice president of the
Aquaculture Certification Council. He says now, indoor shrimp farmers
have a better chance of making a go of it.


“Coming from third-world countries, there’s been a lot of issues with
illegal antibiotics being found in shrimp. There’s been environmental
and social issues that environmentalists have come down hard upon. It’s
sort of prompted the opportunity for a good indoor system where
you could manage those and you didn’t challenge the environment.”


But More says creating and maintaining a clean, organic indoor shrimp
farm is still very expensive, and it seems an even bigger problem now
that the price of shrimp is the lowest it’s been in a decade.


Shrimp farmer Russ Allen says he’s invested several million dollars in
his business. He’s the only guy in the game right now, which he
admits is good for business, but he doesn’t want it that way. He says
he’d like to see the industry grow in Michigan, and throughout the
country.


“In order to do that the government has got to be a partner in this, and
that has been the challenge… that when you don’t have an industry, you
don’t have lobbyists and nobody listens to you and you can’t get an
industry until they do listen to you. So, that’s been our real challenge
right now.”


Allen says he wants the government to offer tax breaks and other
financial assistance to the aquaculture industry like it does to other
sectors of the economy, but he says he can’t even get some local elected
officials to come and see his shrimp farm. He says with so many
companies moving jobs and factories overseas, he thinks government
leaders should be looking for ways to help new and perhaps
unconventional industries like his, grow.


For the GLRC, I’m Erin Toner.

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A Lighter, Brighter Christmas?

  • Author Bob Lilienfeld suggests that we find ways to express our love for each other in less material ways. (Photo by Denise Docherty)

The message from advertisers this holiday season seems to be: buy more because you and your family deserve it. Retailers are hopeful we’ll all spend just a little bit more to make the holidays shiny and bright. The Great Lakes Radio Consortium’s Lester Graham went to the shopping mall with a guy who thinks we ought to scale back our spending during the
holidays:

Transcript

The message from advertisers this holiday season seems to be, buy more because you and your family deserve it. Retailers are hopeful we’ll all spend just a little bit more to make the holidays shiny and bright. The Great Lakes Radio Consortium’s Lester Graham went to the shopping mall with a guy who thinks we ought to scale back our spending during the holidays:


Bob Lilienfeld is one of the co-authors of a book called Use Less Stuff. As you might guess, he’s an advocate of using fewer resources, including buying less stuff during the holidays. We asked him to meet us at a big shopping mall to talk about why he thinks buying less means more.


Lilienfeld: “I want you to go back to when you were a kid. Think about the two or three things in your life, the things that you did that made you really happy. I guarantee none of those have to do with physical, material gifts. They have to do with time you spent with your family or things you did with your friend. But, it wasn’t the time you said ‘Oh, it was the year I got that train,’ or ‘the year I got those cuff links,’ or ‘when I got those earrings.’ That’s the principle difference. We’re trying so hard to be good and to let people know that we love them, but the things that we love about other people and that they love about us have nothing to do with material goods.”


Graham: “There’s a certain expection during the holidays, though, that we will get something nice for the people we love and here at this mall as we’re looking around, there are lots of enticements to fulfill that expectation.”


Lilienfeld: “That’s true, but we’ve been led to believe that more is better, and to a great extent more gifts is not better than fewer gifts. Quality and quantity are very different kinds of thoughts and we’ve been led to believe economically that quantity is more important. But, in reality it’s the qualitative aspects of life that we long remember and really are the ones we treasure.”


Graham: “Now from the news media, I get the impression that if I don’t do my part during the holidays in shopping, that it’s really going to hurt a lot of Americans, the American economy. $220-billion during the holiday season. It’s 25-percent of retailers’ business. So, if I don’t buy or if I scale back my buying, won’t I be hurting the economy?”


Lilienfeld: “It’s always been 25-percent of retailers’ business, even if you go back 30 or 40 years, and that’s probably not going to change. It comes down to your thinking through what’s good for you, what’s good for your family, what’s good for your friends and not worrying so much about what’s good for the economy and what’s good for big companies.”


Retailers are expecting sales to be better this year than last year. So, that simpler lifestyle that Lilienfeld is talking about is not widespread enough to have any real impact on the overall shopping season. But apparently the economy isn’t strong everywhere.


We talked to some shoppers about their holiday shopping plans and the idea of simplifying things. Many of them told us that the economy was forcing them to cut back on gift buying…


Shopper 1: “Well, because of my limited budget, I have to buy, like – I have a list – and I have to buy one at a time, so, being pretty poor is being pretty simple. I’m kind of already living that way.”


Shopper 2: “I don’t need to celebrate Christmas by buying people gifts. And I can give people gifts all year long. And I — Christmas is kind of sham-y to me.”


Shopper 3: “This year, yeah, my family is like, ‘Don’t get me anything.’ I’m going to do something, but hopefully it will be smaller and less expensive and all that.”


Shopper 4: “Well, I don’t feel compelled to buy something because an economist says it’s my part as an American. And I think people are going to get smarter and smarter about how they spend their money and the almighty dollar.”


With the constant messages on television, radio, the Internet and newspapers to spend, there’s a lot of persusive power by advertisers to buy now and think about the cost later.


Since Bob Lilienfeld is such an advocate of a simpler lifestyle, it makes you wonder about his own shopping habits.


Graham: “Do you ever find yourself in the shopping mall, buying stuff for the folks you have on your Christmas list or your holiday list?”


Lilienfeld: “All the time. But, what I try to do is two things. One is think about the fact that more isn’t necessarily better. But the other thing I really try and do is look for gifts that are what I call ‘experiential’ as opposed to material. Tickets. Things where people can go to plays or operas or ball games so that they have an experience. Same thing with travel. I mean, if I could give my father a gift or if I could help him afford to go somewhere, like to see me and the kids, that gift is probably worth a lot more to both of us than if I just gave him a couple of bottles of wine.”


And Lilienfeld says you don’t waste as much wrapping paper when you wrap up tickets.


For the Great Lakes Radio Consortium, this is Lester Graham.

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Streamside Forests Play Role in Pollution Cleanup

Scientists have known for years that streamside forests help stop certain pollutants from entering the waterway. But new research published in the Proceedings of the National Academy of Sciences shows that those forests have added benefits. The Great Lakes Radio Consortium’s Chris Lehman reports:

Transcript

Scientists have known for years that streamside forests help stop
certain pollutants from entering the waterway. But new research
published in the Proceedings of the National Academy of Sciences
shows that those forests have added benefits. The Great Lakes Radio
Consortium’s Chris Lehman reports:


Steams that flow through forests tend to be wider and slower than those
that flow through meadows or urban areas. Scientists say that creates
an environment that can actually help clean up a polluted waterway.


Bernard Sweeney is the director of the Stroud Water Research Center in
Pennsylvania. He says their research points to a direct relationship
between woods and water.


“You put a forest along a small stream, it creates a more natural and
wider stream channel; that in turn provides more habitat, more
available ecosystem which in turn enables a stream to do more work for
us like processing nitrogen and organic matter.”


Sweeney says government programs that offer incentives to create
natural streamside buffers should do more to specifically encourage
reforestation. He says grass buffers don’t have the same cleansing
effect on waterways.


For the Great Lakes Radio Consortium, I’m Chris Lehman.

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