Thursday, April 12, 2012

In environmental disasters, families respond with conflict, denial, silence

In environmental disasters, families respond with conflict, denial, silence [ Back to EurekAlert! ] Public release date: 12-Apr-2012
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Contact: Ellen Goldbaum
goldbaum@buffalo.edu
716-645-4605
University at Buffalo

study reports on families in Libby, Montana dealing with asbestos-related diseases

BUFFALO, N.Y. Environmental disasters impact individuals and communities; they also affect how family members communicate with each other, sometimes in surprising ways, according to a paper published by a faculty member at the University at Buffalo in the Journal of Family Issues.

The study is the first systematic analysis of how families communicate when faced with serious health issues brought on by "slow moving technological disasters," like environmental disasters. The purpose was to identify how people in families communicate when they are facing these issues in order to better characterize the social costs of such disasters.

The findings were, in some ways, counterintuitive, says Heather Orom, PhD, assistant professor of community health and health behavior in the UB School of Public Health and Health Professions and lead author on the paper.

"The casual observer might assume that when people become seriously ill and there are fatalities, that families would come together and support one another," says Orom. "But our research shows that often times, the opposite happens. That is because whether it's buried toxic waste, such as in Love Canal or contaminated drinking water in Woburn, Massachusetts, these slow moving technological disasters become such a divisive issue in communities. The family dynamics totally mirror what happens in the community."

Orom's research consisted of focus groups conducted with residents of Libby, Montana, who either had asbestos-releated disease, had family members with the disease or were not affected either way. Libby, Montana has significantly elevated incidences of several kinds of asbestos-related disease, such as pleural disease, asbestosis, lung cancer and mesothelioma.

For almost 70 years, asbestos-contaminated vermiculite, a mineral commonly used in insulation, construction and as an additive to potting soil, was mined and processed in Libby. As a result, asbestos-related diseases, which often are fatal, are common among former mine employees; family members may also have been affected by the asbestos carried home by workers on their clothes. Cases have been linked to day-to-day exposures among people residing in the town and surrounding area.

"We found that the people in these situations can be victimized twice," Orom continues. "They become ill and then may be stigmatized because some members of the community view illness claims as lacking credibility, as baseless attempts to get compensation that tarnish the reputation of the town."

According to Orom, what typically occurs is that with the news of contamination, properties are devalued and businesses start leaving the area. "Suddenly, you've got two disasters: an economic disaster and a medical disaster," she says. "It's not surprising that some families decide, 'let's stop talking about it.' Those who continue to bring it up are then labeled troublemakers. Those who are sick and are seen with their oxygen also get labeled. So, many people, especially those with symptoms, start to isolate themselves at home and that affects how and if they discuss their illness with family members." Orom adds that this behavior could prevent people from seeking the medical or psychological help they need; it also could prevent them from discussing important measures that other family members should take, such as screening to find out if they, too, have the disease.

Orom and her colleagues identified five communication patterns within the affected families, which they characterized as open/supportive; silent/supportive; open/conflictual; silent/conflictual and silent/denial. They speculated that the silent and conflictual types of communication could be barriers to attitudes and behaviors that would promote better health, such as screening for asbestos-related diseases, and could increase psychological distress in families.

"There is a reason why people don't like to discuss illness in general, anyway," says Orom. "With an environmental diasaster, there is an additional layer creating a propensity for silence. In our focus groups, we saw instances where families rejected the legitimacy of the illness and estranged the person who was ill."

Orom notes that the negative effects that come from these kinds of responses within families do have significance in the larger community and should be taken into account by policymakers.

"If there are real social and financial costs that result from these disasters and their effects on family relationships, for example, if divorces increase as a result, then maybe this kind of research can help move policies in a direction of being more protective of communities," she says.

###

The research was conducted as part of a larger communication project by the National Center for Vermiculate and Asbestos-Related Cancers at the Barbara Ann Karmanos Cancer Institute in Detroit. Funding came from the Centers for Disease Control and Prevention.

Co-authors with Orom are Rebecca J.W. Cline of Kent State University; Tanis Hernandez of the Center for Asbestos-Related Disease; Lisa Berry-Bobovski and Ann G. Schwartz of the Karmanos Cancer Institute and John C. Ruckdeschel of Intermountain Healthcare.



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In environmental disasters, families respond with conflict, denial, silence [ Back to EurekAlert! ] Public release date: 12-Apr-2012
[ | E-mail | Share Share ]

Contact: Ellen Goldbaum
goldbaum@buffalo.edu
716-645-4605
University at Buffalo

study reports on families in Libby, Montana dealing with asbestos-related diseases

BUFFALO, N.Y. Environmental disasters impact individuals and communities; they also affect how family members communicate with each other, sometimes in surprising ways, according to a paper published by a faculty member at the University at Buffalo in the Journal of Family Issues.

The study is the first systematic analysis of how families communicate when faced with serious health issues brought on by "slow moving technological disasters," like environmental disasters. The purpose was to identify how people in families communicate when they are facing these issues in order to better characterize the social costs of such disasters.

The findings were, in some ways, counterintuitive, says Heather Orom, PhD, assistant professor of community health and health behavior in the UB School of Public Health and Health Professions and lead author on the paper.

"The casual observer might assume that when people become seriously ill and there are fatalities, that families would come together and support one another," says Orom. "But our research shows that often times, the opposite happens. That is because whether it's buried toxic waste, such as in Love Canal or contaminated drinking water in Woburn, Massachusetts, these slow moving technological disasters become such a divisive issue in communities. The family dynamics totally mirror what happens in the community."

Orom's research consisted of focus groups conducted with residents of Libby, Montana, who either had asbestos-releated disease, had family members with the disease or were not affected either way. Libby, Montana has significantly elevated incidences of several kinds of asbestos-related disease, such as pleural disease, asbestosis, lung cancer and mesothelioma.

For almost 70 years, asbestos-contaminated vermiculite, a mineral commonly used in insulation, construction and as an additive to potting soil, was mined and processed in Libby. As a result, asbestos-related diseases, which often are fatal, are common among former mine employees; family members may also have been affected by the asbestos carried home by workers on their clothes. Cases have been linked to day-to-day exposures among people residing in the town and surrounding area.

"We found that the people in these situations can be victimized twice," Orom continues. "They become ill and then may be stigmatized because some members of the community view illness claims as lacking credibility, as baseless attempts to get compensation that tarnish the reputation of the town."

According to Orom, what typically occurs is that with the news of contamination, properties are devalued and businesses start leaving the area. "Suddenly, you've got two disasters: an economic disaster and a medical disaster," she says. "It's not surprising that some families decide, 'let's stop talking about it.' Those who continue to bring it up are then labeled troublemakers. Those who are sick and are seen with their oxygen also get labeled. So, many people, especially those with symptoms, start to isolate themselves at home and that affects how and if they discuss their illness with family members." Orom adds that this behavior could prevent people from seeking the medical or psychological help they need; it also could prevent them from discussing important measures that other family members should take, such as screening to find out if they, too, have the disease.

Orom and her colleagues identified five communication patterns within the affected families, which they characterized as open/supportive; silent/supportive; open/conflictual; silent/conflictual and silent/denial. They speculated that the silent and conflictual types of communication could be barriers to attitudes and behaviors that would promote better health, such as screening for asbestos-related diseases, and could increase psychological distress in families.

"There is a reason why people don't like to discuss illness in general, anyway," says Orom. "With an environmental diasaster, there is an additional layer creating a propensity for silence. In our focus groups, we saw instances where families rejected the legitimacy of the illness and estranged the person who was ill."

Orom notes that the negative effects that come from these kinds of responses within families do have significance in the larger community and should be taken into account by policymakers.

"If there are real social and financial costs that result from these disasters and their effects on family relationships, for example, if divorces increase as a result, then maybe this kind of research can help move policies in a direction of being more protective of communities," she says.

###

The research was conducted as part of a larger communication project by the National Center for Vermiculate and Asbestos-Related Cancers at the Barbara Ann Karmanos Cancer Institute in Detroit. Funding came from the Centers for Disease Control and Prevention.

Co-authors with Orom are Rebecca J.W. Cline of Kent State University; Tanis Hernandez of the Center for Asbestos-Related Disease; Lisa Berry-Bobovski and Ann G. Schwartz of the Karmanos Cancer Institute and John C. Ruckdeschel of Intermountain Healthcare.



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?


AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


sarah shahi

Want to Make Money Today? Create Your Own Internet Marketing ...

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A lot of business ventures have been successful and are able to make money today because they put in place and implemented an internet marketing plan. An online marketing plan helps you market your products or services to the internet community that is as huge as your own imagination. Marketing your product online using a solid marketing plan not only would increase your sales but will open a door to other potential clients that will further grow your business.

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Online Marketing Plan for Small Business

If you are an owner of a small business that has just started and you want your name to be known widely to millions of people over the internet at once, you definitely need an internet marketing plan.

An online marketing plan can expose your product not just to your target market but also to other groups of potential customers. With millions of people using the internet at any given time, you are exposed to an overwhelming number of customers that is not even half of the number of people that will chance upon your advertisements on television, radio, or newspaper.

Technology keeps on developing each day. People are trying to cope with it. You, as a businessman, should cope with it, too. Otherwise, you will be left behind with a handful of people who are not willing to embrace the modernity of the world. That means very few customers to sustain your business. As a small business enterprise still trying to make a name, the internet will help a lot in your endeavor. As a small business, it is expected that you cannot afford to pay for television ads yet. That is just another reason you need this. Using the internet is free. Start creating your internet marketing plan and make money today.

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Basic Steps to Create an Online Marketing Plan

Marketing your product or business online is not easy. That is why you will need a solid marketing plan. There are few things to keep in mind when creating an online marketing plan.

First, you have to define your customers. It is very hard to target a general group of people. If your product is a facial wash, your primary target market most likely is women. Profile them as much as possible and obtain as much essential information as possible when they are buying product you sell.

After defining your target, choose where you are going to place your ads. If your target market is women, you may post your ads on websites you know are frequently visited by women.

There is no business that does need capital. You have to shell out some money from your pocket to fund these ads. If you have limited budget, try to prioritize the ads that you think will attract more attention.

You may now start creating your ad?s content. As taught in basic advertising courses, choose content that will leave an impression on your audience.? Lastly, monitor your ads. Record patterns until you are able to figure out how ad campaigns work in your niche on the internet.

Online marketing is becoming a popular marketing strategy nowadays. Effective online marketing though needs a solid internet marketing plan. If you already have a marketing plan in place, nothing can hold your business back from starting to make money today.

new hampshire primary results

Podcast Basics For Circle Pines MLM Business Bloggers | Blaine ...

Podcast Basics For Circle Pines MLM Business Bloggers

Today?s Circle Pines direct selling article is for Circle Pines internet rookies who want to kick up their web marketing a notch by adding a podcast to their Circle Pines home business blog.

A podcast is a multimedia file that is downloaded for playback on a mobile device such as an iPod or laptop computer. It can be a digital recording of a radio program or, more often, a program produced solely for online distribution. A podcast can be a recording of a webcast: a live Circle Pines program that is ?streamed? or broadcast on the internet in real time. When this is the case, it is similar to a DVD recording of a live program that you store in the database of your playback device.

A related term is the acronym RSS which probably originally stood for Rich Site Summary feed but is sometimes used for Really Simple Syndication. You have probably seen the term RSS on websites. An RSS feed allows digital files to be downloaded in a standard format. Minneapolis podcast listeners often subscribe to favorite ongoing podcasts. When new podcasts are produced, they are automatically downloaded by RSS applications.

It is fairly simple hardware- and software-wise to product your own podcast for your Circle Pines online business
. Your laptop may already have recording capability. If not, you can buy any equipment you need in the Minneapolis area.

Circle Pines business owners operating on a shoestring will be happy to know that basic recording and editing software can be downloaded for free. If you want to get fancy, you can always buy more sophisticated software at Minnesota specialty computer stores. I recommend using a headset microphone so the mic is always in the right spot to get a clear and consistent recording.

Now the fun part: what will you podcast? The possibilities are endless for Circle Pines direct marketers. You can record Minnesota trade show presentations, interviews with founding distributors of your Circle Pines direct sales company, or create an entertaining pitch about your Minneapolis business opportunity. Let your expertise and enthusiasm shine.

Creating a podcast gives you a chance to connect with potential Circle Pines customers or downline members in a personal way.

I am Probiotic Cacao Proponent Adam Green, a network marketer representing Xocai Xe. I am based in Blaine, Minnesota.

Are you interested in owning a Xocai Xe online business? My team members are steadily expanding their networks and increasing their direct sales income.

Call me today to start building your own online Xocai Xe business!

Probiotic Cacao Proponent Adam Green

Blaine, Minnesota zip code 55449
801.437.5994 574adampaulgreen@adampaulgreen.com
Xocai Xe residual income opportunity for Circle Pines home-based business owners.

Join Winner?s Circle today!

I am Adam Green, and I am a Blaine-based Xocai artisan chocolate distributor. I joined Xocai in October 2011. I sell the industry-leading Xocai Xe and Xocai Sipping Coco online and in Blaine, Circle Pines, Saint Paul, and Andover. Our valued Minneapolis customers recommend Xocai Sipping Coco because Xocai Sipping Coco white chocolate candy from Xocai contain acai!.

Winner?s Circle is also a fantastic Xocai Xe home-based business within 64 miles of the Minneapolis area. Minnesota entrepreneurs can supplement their income by cashing in on a high-demand Minnesota healthy artisan chocolate market. To learn more about Winner?s Circle, visit http://adampaulgreen.com/about/.

Call me at 801.437.5994 to own your own Xocai Xe business in Blaine, Circle Pines, Saint Paul, or Andover.

The URL for my personal Minneapolis Xocai chocolate web page in Blaine, Minnesota 55449 is http://adampaulgreen.com/about/. The URL for another one of my 64 Minnesota Xocai artisan chocolate web pages is http://adampaulgreen.com/. I also have a Minnesota healthy chocolate page at http://adampaulgreen.com/partnership2/.

amy schumer

Philippine warship in standoff with Chinese vessels

The Philippines' biggest warship was locked in a standoff on Wednesday with two Chinese vessels in the South China Sea, reigniting tensions in a decades-long dispute over the resource-rich waters.

The Philippine government said the Chinese ships were blocking efforts by its navy flagship vessel to arrest Chinese fishermen that were found on the weekend to have illegally entered its territory.

In a dramatic day of diplomacy, the Philippines summoned the Chinese ambassador in Manila and lodged a formal protest, but China insisted it had sovereign rights over the area and ordered the Philippine warship to leave.

Philippine President Benigno Aquino said he was looking to end the standoff through diplomatic means.

"No one will benefit if we have violence," he told reporters.

Philippine Foreign Affairs Secretary Albert del Rosario said both sides wanted a peaceful resolution, but also cautioned that negotiations were at an "impasse" and his country was ready to defend its territory.

"If the Philippines is challenged, we are prepared to secure our sovereignty," del Rosario said.

The standoff was occurring at Scarborough Shoal, just 124 nautical miles from the Philippines' main island of Luzon.

China insists it has sovereign rights to all of the South China Sea, even waters close to the coast of other countries and hundreds of kilometres (miles) from its own landmass.

The Philippines says it has sovereign rights over areas of the sea within its 200-nautical-mile exclusive economic zone, and that its position is supported by international law.

Apart from China and the Philippines, Taiwan, Malaysia, Brunei and Vietnam have overlapping claims to parts of the South China Sea, making the waters one of Asia's potential flashpoints for armed conflict.

The South China Sea holds enormous economic and political significance, as it is believed to sit atop vast oil and gas resources, has huge fish stocks and hosts shipping lanes that are vital for global trade.

The Philippines and Vietnam complained last year of increasingly aggressive acts by China in staking its claim to the South China Sea.

The Philippines accused Chinese vessels of firing warning shots at Filipino fishermen, as well as harassing an oil exploration vessel and placing markers on islets within Philippine territory.

However this week's stand-off is the highest-profile in recent years.

It occurred after the Philippines detected eight Chinese fishing boats at Scarborough Shoal on Sunday.

The Philippines said the boats were subsequently found to have hauled in live sharks, corals and some endangered species including giant clams.

The two Chinese surveillance vessels appeared on the scene on Tuesday, and blocked the Philippine warship from approaching the fishing boats.

The Chinese embassy in Manila released a statement on Wednesday ordering the warship out of the disputed waters.

In Beijing, foreign ministry spokesman Liu Weimin accused the Philippines of "harassing" the Chinese fishermen and said a protest had been lodged.

"We urge the Philippine side... not to make new troubles and create conditions for the friendly relations of the two countries," Liu said.

But in Manila, del Rosario insisted the Philippines could do as it pleased at Scarborough Shoal.

"We are there because we have sovereignty over the area. We want to be there and we have the right to be there," he said.

The Philippine coast guard also said it would deploy a boat to support the warship.

On Wednesday evening, del Rosario briefed reporters again, saying no breakthrough had been achieved.

Philippine concerns about China's perceived aggressiveness prompted it to seek help last year from the United States in building up its poorly equipped military and weak maritime defence capabilities.

The United States responded favourably, delivering the Gregorio del Pilar, a a 115-metre (378-foot) decommissioned US coast guard cutter, to replace a World War II-era vessel as the Philippine Navy's biggest ship.

The Gregorio del Pilar is the vessel involved in Wednesday's stand-off.

gene hackman

Home Improvement Suggestions That Keeps Your Dwelling Safe ...

Most individuals will not be familiar with some simple home improvement ideas that are actually easy to do. Life demands a lot from each and every one of us and it can be difficult to keep up with everything you need to do. But half the fun of it is continuing to learn and discover what is possible. Sometimes we will think about expensive projects that we want to do that we know we can?t afford. Do not be discouraged because a little creativity and reading will reveal so much you can do on your budget. Hopefully, the following three home improvement tips will be interesting to you and well within your budget this month. My sister who works as ultrasound technician in the US normally sends me ideas via email pertaining to home improvement plans, and I noticed how she always remind me of safety measures first before other things.

The appropriate flow of water in your gutters is necessary. You need to clean your gutters, especially if there are leaves blocking the water flow. Falling leaves can block gutters very easily, and people with lots of trees have quite a chore to do every year. So definitely take action to keep the leaves from accumulating as well as anything else. Proper water drainage for your home is absolutely essential when you have gutters. Water can overflow if the gutters are blocked causing potential problems. You want to avoid that condition because it can cause water intrusion into your basement. If you browse more on the internet you will come across plenty of bargains that can save your money. I usually opt for this kind of strategy to make sure I only shell out a little out of my ultrasound tech salary.

Redoing your kitchen, especially when it includes your cabinets, can be a very costly job. Having your existing cabinets resurfaced with veneer wood, could be one way to save money. This is definitely worth investigating and learning more about as the available wood veneers are beautiful. Veneers might not be a cheap option, because you might like exotic wood as your solution. Then, you still have to consider the craftsman you need to hire. The new look and feel of your kitchen is something you can imagine.

Changing your air filters in your heaters and air conditioners is something you should also do. Air filters are definitely in any device that uses a heat pump. You never want to allow them a chance to build up with dust matter. The simple reason is the air flow will be reduced, and the unit will operate inefficiently. Dust particles that are built up can actually blow through into your home. Changing the filters prevents this. We also recommend you buy a higher quality air filter that is rated in the micron range for filtered particulates. I?ve known quite a few ultrasound sonography schools who have this kind of infrared technology and it?s really awesome. Energy efficiency is the goal of most of these home improvement projects. The money you spend will help you save money later on. If you plan on staying in your house for years to come, then that is all the more reason to do it. Some houses lose energy very efficiently, which is seemingly epidemic. Many people will ignore small leaks in their home, things that should be fixed right away. But the thing to remember is all of those small things definitely add-up and cost you money.

election day

Could 'advanced' dinosaurs rule other planets?

Could 'advanced' dinosaurs rule other planets? [ Back to EurekAlert! ] Public release date: 11-Apr-2012
[ | E-mail | Share Share ]

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society

New scientific research raises the possibility that advanced versions of T. rex and other dinosaurs monstrous creatures with the intelligence and cunning of humans may be the life forms that evolved on other planets in the universe. "We would be better off not meeting them," concludes the study, which appears in the Journal of the American Chemical Society.

In the report, noted scientist Ronald Breslow, Ph.D., discusses the century-old mystery of why the building blocks of terrestrial amino acids (which make up proteins), sugars, and the genetic materials DNA and RNA exist mainly in one orientation or shape. There are two possible orientations, left and right, which mirror each other in the same way as hands. This is known as "chirality." In order for life to arise, proteins, for instance, must contain only one chiral form of amino acids, left or right. With the exception of a few bacteria, amino acids in all life on Earth have the left-handed orientation. Most sugars have a right-handed orientation. How did that so-called homochirality, the predominance of one chiral form, happen?

Breslow describes evidence supporting the idea that the unusual amino acids carried to a lifeless Earth by meteorites about 4 billion years ago set the pattern for normal amino acids with the L-geometry, the kind in terrestial proteins, and how those could lead to D-sugars of the kind in DNA.

"Of course," Breslow says, "showing that it could have happened this way is not the same as showing that it did." He adds: "An implication from this work is that elsewhere in the universe there could be life forms based on D-amino acids and L-sugars. Such life forms could well be advanced versions of dinosaurs, if mammals did not have the good fortune to have the dinosaurs wiped out by an asteroidal collision, as on Earth. We would be better off not meeting them."

###

The author acknowledges funding from the National Science Foundation.

The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 164,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society contact newsroom@acs.org.



[ Back to EurekAlert! ] [ | E-mail | Share Share ]

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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


Could 'advanced' dinosaurs rule other planets? [ Back to EurekAlert! ] Public release date: 11-Apr-2012
[ | E-mail | Share Share ]

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society

New scientific research raises the possibility that advanced versions of T. rex and other dinosaurs monstrous creatures with the intelligence and cunning of humans may be the life forms that evolved on other planets in the universe. "We would be better off not meeting them," concludes the study, which appears in the Journal of the American Chemical Society.

In the report, noted scientist Ronald Breslow, Ph.D., discusses the century-old mystery of why the building blocks of terrestrial amino acids (which make up proteins), sugars, and the genetic materials DNA and RNA exist mainly in one orientation or shape. There are two possible orientations, left and right, which mirror each other in the same way as hands. This is known as "chirality." In order for life to arise, proteins, for instance, must contain only one chiral form of amino acids, left or right. With the exception of a few bacteria, amino acids in all life on Earth have the left-handed orientation. Most sugars have a right-handed orientation. How did that so-called homochirality, the predominance of one chiral form, happen?

Breslow describes evidence supporting the idea that the unusual amino acids carried to a lifeless Earth by meteorites about 4 billion years ago set the pattern for normal amino acids with the L-geometry, the kind in terrestial proteins, and how those could lead to D-sugars of the kind in DNA.

"Of course," Breslow says, "showing that it could have happened this way is not the same as showing that it did." He adds: "An implication from this work is that elsewhere in the universe there could be life forms based on D-amino acids and L-sugars. Such life forms could well be advanced versions of dinosaurs, if mammals did not have the good fortune to have the dinosaurs wiped out by an asteroidal collision, as on Earth. We would be better off not meeting them."

###

The author acknowledges funding from the National Science Foundation.

The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 164,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society contact newsroom@acs.org.



[ Back to EurekAlert! ] [ | E-mail | Share Share ]

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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


the artist

Climate change boosts then quickly stunts plants, decade-long study shows

Climate change boosts then quickly stunts plants, decade-long study shows [ Back to EurekAlert! ] Public release date: 11-Apr-2012
[ | E-mail | Share Share ]

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation

Global warming may initially make the grass greener, but not for long

Global warming may initially make the grass greener, but not for long, according to new research results.

The findings, published this week in the journal Nature Climate Change, show that plants may thrive in the early stages of a warming environment but then begin to deteriorate quickly.

"We were really surprised by the pattern, where the initial boost in growth just went away," said scientist Zhuoting Wu of Northern Arizona University (NAU), a lead author of the study. "As ecosystems adjusted, the responses changed."

Ecologists subjected four grassland ecosystems to simulated climate change during a decade-long study.

Plants grew more the first year in the global warming treatment, but this effect progressively diminished over the next nine years and finally disappeared.

The research shows the long-term effects of global warming on plant growth, on the plant species that make up a community, and on changes in how plants use or retain essential resources like nitrogen.

"The plants and animals around us repeatedly serve up surprises," said Saran Twombly, program director in the National Science Foundation (NSF)'s Division of Environmental Biology, which funded the research.

"These results show that we miss these surprises because we don't study natural communities over the right time scales. For plant communities in Arizona, it took researchers 10 years to find that responses of native plant communities to warmer temperatures were the opposite of those predicted."

The team transplanted four grassland ecosystems from a higher to lower elevation to simulate a future warmer environment, and coupled the warming with the range of predicted changes in precipitation--more, the same, or less.

The grasslands studied were typical of those found in northern Arizona along elevation gradients from the San Francisco Peaks down to the Great Basin Desert.

The researchers found that long-term warming resulted in loss of native species and encroachment of species typical of warmer environments, ultimately pushing the plant community toward less productive species.

The warmed grasslands also cycled nitrogen more rapidly. This should make more nitrogen available to plants, scientists believed, helping plants grow more. But instead much of the nitrogen was lost, converted to nitrogen gases in the atmosphere or leached out by rainfall washing through the soil.

Bruce Hungate, senior author of the paper and an ecologist at NAU, said the study challenges the expectation that warming will increase nitrogen availability and cause a sustained increase in plant productivity.

"Faster nitrogen turnover stimulated nitrogen losses, likely reducing the effect of warming on plant growth," Hungate said. "More generally, changes in species, changes in element cycles--these really make a difference. It's classic systems ecology: the initial responses elicit knock-on effects, which here came back to bite the plants. These ecosystem feedbacks are critical--you can't figure this out with plants grown in a greenhouse."

The findings caution against extrapolating from short-term results, or from experiments with plants grown under artificial conditions, where researchers can't measure the feedbacks from changes in the plant community and from nutrient cycles.

"The long-term perspective is key," said Hungate. "We were surprised, and I'm guessing there are more such surprises in store."

###

Co-authors of the paper include George Koch and Paul Dijkstra, both at NAU.

-NSF-



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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


Climate change boosts then quickly stunts plants, decade-long study shows [ Back to EurekAlert! ] Public release date: 11-Apr-2012
[ | E-mail | Share Share ]

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation

Global warming may initially make the grass greener, but not for long

Global warming may initially make the grass greener, but not for long, according to new research results.

The findings, published this week in the journal Nature Climate Change, show that plants may thrive in the early stages of a warming environment but then begin to deteriorate quickly.

"We were really surprised by the pattern, where the initial boost in growth just went away," said scientist Zhuoting Wu of Northern Arizona University (NAU), a lead author of the study. "As ecosystems adjusted, the responses changed."

Ecologists subjected four grassland ecosystems to simulated climate change during a decade-long study.

Plants grew more the first year in the global warming treatment, but this effect progressively diminished over the next nine years and finally disappeared.

The research shows the long-term effects of global warming on plant growth, on the plant species that make up a community, and on changes in how plants use or retain essential resources like nitrogen.

"The plants and animals around us repeatedly serve up surprises," said Saran Twombly, program director in the National Science Foundation (NSF)'s Division of Environmental Biology, which funded the research.

"These results show that we miss these surprises because we don't study natural communities over the right time scales. For plant communities in Arizona, it took researchers 10 years to find that responses of native plant communities to warmer temperatures were the opposite of those predicted."

The team transplanted four grassland ecosystems from a higher to lower elevation to simulate a future warmer environment, and coupled the warming with the range of predicted changes in precipitation--more, the same, or less.

The grasslands studied were typical of those found in northern Arizona along elevation gradients from the San Francisco Peaks down to the Great Basin Desert.

The researchers found that long-term warming resulted in loss of native species and encroachment of species typical of warmer environments, ultimately pushing the plant community toward less productive species.

The warmed grasslands also cycled nitrogen more rapidly. This should make more nitrogen available to plants, scientists believed, helping plants grow more. But instead much of the nitrogen was lost, converted to nitrogen gases in the atmosphere or leached out by rainfall washing through the soil.

Bruce Hungate, senior author of the paper and an ecologist at NAU, said the study challenges the expectation that warming will increase nitrogen availability and cause a sustained increase in plant productivity.

"Faster nitrogen turnover stimulated nitrogen losses, likely reducing the effect of warming on plant growth," Hungate said. "More generally, changes in species, changes in element cycles--these really make a difference. It's classic systems ecology: the initial responses elicit knock-on effects, which here came back to bite the plants. These ecosystem feedbacks are critical--you can't figure this out with plants grown in a greenhouse."

The findings caution against extrapolating from short-term results, or from experiments with plants grown under artificial conditions, where researchers can't measure the feedbacks from changes in the plant community and from nutrient cycles.

"The long-term perspective is key," said Hungate. "We were surprised, and I'm guessing there are more such surprises in store."

###

Co-authors of the paper include George Koch and Paul Dijkstra, both at NAU.

-NSF-



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