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Hermaphrodite Polar Bears!!

Postby mutantseabass » Fri Jan 13, 2006 9:28 am

It is unbelievable how bad of shape the earth is in. People really need to open their eyes to what is going on in the world and to the earth. This is pretty scarey to think that pollution caused this! :-o

Toxic Waste Creates Hermaphrodite Arctic Polar Bears
by David Usborne


Wildlife researchers have found new evidence that Arctic polar bears, already gravely threatened by the melting of their habitat because of global warming, are being poisoned by chemical compounds commonly used in Europe and North America to reduce the flammability of household furnishings like sofas, clothing and carpets.


Polar bears - the world's largest bears - are facing a bleak future because of global warming and experts want them declared a vulnerable species. (Photo: The Age)
A team of scientists from Canada, Alaska, Denmark and Norway is sounding the alarm about the flame retardants, known as polybrominated diphenyls, or PBDEs, saying that significant deposits have recently been found in the fatty tissues of polar bears, especially in eastern Greenland and Norway's Svalbard islands.

Studies are still being carried out on what impact the chemicals might be having on the bears, but tests on laboratory animals such as mice indicate that their effects can be considerable, attacking the sex and thyroid glands, motor skills and brain function.

There is also evidence that compounds similar to the PBDEs have contributed to a surprisingly high rate of hermaphroditism in polar bears. About one in 50 female bears on Svalbard has both male and female sex organs, a phenomenon scientists link directly to the effects of pollution.

"The Arctic is now a chemical sink," declared Colin Butfield, a campaign leader for the Worldwide Fund for Nature, which last month indicated that killer whales in the Arctic were also suffering from elevated levels of contamination with fire retardants as well as other man-made compounds. "Chemicals from products that we use in our homes every day are contaminating Arctic wildlife."

The pollutants are carried northwards from industrialised regions of the US and western Europe on currents and particularly on northbound winds. Contaminated moisture often condenses on arriving in the cold Arctic climes and is then deposited, ready to enter the food chain.

For several years, scientists have observed how the concentrations of the pollutants are magnified as they ascend the food chain, from plankton to fish and then to marine mammals such as seals, whales and polar bears. The new study, first published last month in the journal Environmental Science and Technology, shows, for instance, that one compound was 71 times more concentrated in polar bears than in the seals they normally feed upon.

Conservationists are especially alarmed by these new findings because of the already fragile condition of the Arctic polar bear populations, some of which could be devastated before the end of the century. As warming temperatures erode their hunting grounds, polar bears in Canada's western Hudson Bay region, for instance, saw their numbers slide from 1,100 in 1995 to only 950 in 2004.

The dangers now posed by the PBDEs are reminiscent of the crisis 30 years ago over PCBs - polychlorinated biphenyls - a highly toxic by-product of many industries that was also found to be migrating to the Arctic. The dumping of PCBs was swiftly banned. Since 2004, manufacturing has stopped in the US of two of the most toxic retardants, called penta and octa. Stockpiles of both still exist, however.

According to Derek Muir, of Canada's Environmental Department and a leader of the new research, there are signs of a slightly different retardant, typically used in construction materials and furnishings, also showing up in the Arctic and in the bears, called HBCD. "It's a chemical that needs to be watched, because it does biomagnify in the aquatic food webs and appears to be a widespread pollutant."

The research team tested 139 bears captured in 10 different locations across the Arctic region. They found that the bears in Norway's Svalbard, a wildlife refuge where all hunting is banned, had 10 times the levels of the chemicals than bears in Alaska and four times those in Canada.

© 2006 Independent News and Media Limited



http://www.commondreams.org/headlines06/0110-01.htm
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Postby WickedSmaat » Fri Jan 13, 2006 10:20 am

Never eat yellow snow.
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Postby Homeless » Fri Jan 13, 2006 10:20 am

:,-(

Its only going to get worse.
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Postby Redskins Win » Fri Jan 13, 2006 10:21 am

Is this how you can explaing the increase in mutant sea bass? :-o
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Postby mutantseabass » Fri Jan 13, 2006 10:49 am

Redskins Win wrote:Is this how you can explaing the increase in mutant sea bass? :-o


Right on ;-D
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Postby dream_017 » Fri Jan 13, 2006 10:53 am

This is just wrong....wrong!!!
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Postby josebach » Fri Jan 13, 2006 10:55 am

Homeless wrote::,-(

Its only going to get worse.


This may sound out there, but I really think that sooner or later the planet will do something to either get rid of us or at least lower our numbers to the point that we stop destroying the planet. Look at the population explosion the last 100 years. In 1900, there was roughly 1 billion people on the planet. By 2000, there was 6 billion and by 2012 or so, there's expected to be 7 billion. We obviously can't keep going at this pace.
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Postby mutantseabass » Fri Jan 13, 2006 10:56 am

dream_017 wrote:This is just wrong....wrong!!!


And no one seems to care, its sad actually. People are so engrossed in their own lives they dont seem to stop and see what is going on or if they do see it they dont seem to want to take the time and research it or do anything about it.
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Postby knapplc » Fri Jan 13, 2006 11:22 am

mutantseabass wrote:
dream_017 wrote:This is just wrong....wrong!!!


And no one seems to care, its sad actually. People are so engrossed in their own lives they dont seem to stop and see what is going on or if they do see it they dont seem to want to take the time and research it or do anything about it.

We have to change our culture to make any significant headway in this area. We'll do it, but it may take a significant event to get us to. Humans are stubborn and not prone to sudden change unless forced.

Of course, while our climate may be changing, I'm not one of the "doom-and-gloom" crowd who think that climate change automatically equals human extinction. We're a tough, rugged species. We've gone through a lot in our time and we'll survive whatever happens in the next 100 years or so. It may not be as comfortable to live in the next 50 years as it has been in the last 50, but we'll make do.
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Postby Lushcrush » Fri Jan 13, 2006 11:39 am

josebach wrote:
Homeless wrote::,-(

Its only going to get worse.


This may sound out there, but I really think that sooner or later the planet will do something to either get rid of us or at least lower our numbers to the point that we stop destroying the planet. Look at the population explosion the last 100 years. In 1900, there was roughly 1 billion people on the planet. By 2000, there was 6 billion and by 2012 or so, there's expected to be 7 billion. We obviously can't keep going at this pace.

It's only a matter of time until the human Ebola virus mutates into an airborne variant and when it does we'll all be gone before you know it.
So ... no worries mate 8-o
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