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Old 09-23-2008, 07:31 PM  
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"It is the canary in the coal mine, and the canary is definitely in trouble."

Polar bears resort to cannibalism as Arctic ice shrinks


CNN) -- Summer is over in the northern hemisphere, but it's been another chilling season for researchers who study Arctic sea ice.

"It's definitely a bad report. We did pick up little bit from last year, but this is over 30 percent below what used to be normal," said Walt Meier, a research scientist with the National Snow and Ice Data Center in Boulder, Colorado.

This past summer, the Arctic sea ice dwindled to its second lowest level. Arctic sea ice is usually 1 to 3 meters, or as much as 9 feet thick. It grows during autumn and winter and shrinks in the spring and summer.

Scientists have monitored sea ice conditions for about 50 years with the help of satellites. Changes in the past decade have been alarming to climate researchers and oceanographers.

"It is the second lowest on record. ... If anything, it is reinforcing the long-term trend. We are still losing the ice cover at a rate of 10 percent per decade now, and that is quite an increase from five years ago," Meier said. "We are still heading toward an ice cover that is going to melt completely in the summertime in the Arctic."

Arctic ice helps regulate and temper the climate in many other parts of the world. The less ice there is, the more dramatic the impact. Huge sheets of ice reflect solar radiation, keeping our planet cool. When that ice melts, huge expanses of darker, open ocean water absorb the heat instead, warming things up.

Although few humans live in the Arctic, the disappearance of this ice cover can have effects far beyond the few residents and the wildlife of this harsh region. Ice cover loss can influence winds and precipitation on other continents, possibly leading to less rain in the western United States and creating more in Europe.

"That warming is going to spread to the lower latitudes, to the United States, and it's going to affect storm systems and storm tracks, the jet stream; that's going to affect crops and all sorts of things," Meier predicted.

So, just how much ice is disappearing?

Less than 30 years ago, there would still be 7 million square kilometers or 2.5 million square miles of ice left at the end of an Arctic summer. That's now dropped by almost 40 percent.

"Seven million square kilometers roughly corresponds to an area of the lower 48 United States. So back in the early 1980s, the lower 48 states would be covered in sea ice in the summer," Meier said. "Now we've essentially lost sea ice east of the Mississippi River and even beyond. So that's a significant amount of area."



"The Arctic sea ice melt is a disaster for the polar bears," according to Kassie Siegel, staff attorney for the Center for Biological Diversity. "They are dependent on the Arctic sea ice for all of their essential behaviors, and as the ice melts and global warming transforms the Arctic, polar bears are starving, drowning, even resorting to cannibalism because they don't have access to their usual food sources."

Scientists have noticed increasing reports of starving Arctic polar bears attacking and feeding on one another in recent years. In one documented 2004 incident in northern Alaska, a male bear broke into a female's den and killed her.

In May, the U.S. Department of Interior listed the polar bear as a "threatened" species under the Endangered Species Act. In a news release, U.S. Interior Secretary Dirk Kempthorne stated, "loss of sea ice threatens and will likely continue to threaten polar bear habitat. This loss of habitat puts polar bears at risk of becoming endangered in the foreseeable future, the standard established by the ESA for designating a threatened species."


What is the future for Arctic sea ice? Some scientists believe that in just five years, the Arctic may be ice-free during the summer.

"The Arctic is kind of the early warning system of the climate," Meier said. "It is the canary in the coal mine, and the canary is definitely in trouble."
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Old 09-23-2008, 07:33 PM   #2
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Old 09-23-2008, 07:40 PM   #3
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We can pull all of the snow from south africa and put it in it's proper place to raise sea levels and Quick lets tax the middle/lower class to fend off global warming..err cooling... errr climate change.
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Old 09-23-2008, 08:33 PM   #4
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Quote:
Originally Posted by KILLER_CLOWN View Post
We can pull all of the snow from south africa and put it in it's proper place to raise sea levels and Quick lets tax the middle/lower class to fend off global warming..err cooling... errr climate change.
I thought that Global Cooling was used the old term used until it became Global Warming from the leftist/liberal/democrat/socialist/tree hugger. I thought that Climate Change was the word that the rightie/conservative/republican/fascist/envoronment hater had to use once it was clear that it was not going to go away. How can you lump those into the same statement?
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Old 09-23-2008, 08:35 PM   #5
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**** it. National Geographic will put out some killer footage of polar bear death fights that should go a long way to curbing any hysteria.
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Old 09-23-2008, 08:37 PM   #6
KILLER_CLOWN KILLER_CLOWN is offline
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Quote:
Originally Posted by bango View Post
I thought that Global Cooling was used the old term used until it became Global Warming from the leftist/liberal/democrat/socialist/tree hugger. I thought that Climate Change was the word that the rightie/conservative/republican/fascist/envoronment hater had to use once it was clear that it was not going to go away. How can you lump those into the same statement?
Doesn't really make a difference, the best way to find out about climate change is from the weatherman. He can tell you day to day what is going to happen, and you can assume change will happen between seasons.
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Old 09-23-2008, 08:42 PM   #7
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I love hearing about polar bears dying. The day they are extinct we will all be safer. But I do have to confess I'm a little surprised that they are resorting to cannibalism just because there isn't enough ice to eat.
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Old 09-23-2008, 08:51 PM   #8
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Palin says the polar bears are fine. I assume she should know.
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Old 09-23-2008, 08:52 PM   #9
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Quote:
Originally Posted by RJ View Post
Palin says the polar bears are fine. I assume she should know.
She just wants them gone because they throw a kink in her foreign policy creds by blocking her view of Russia.
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Old 09-23-2008, 09:15 PM   #10
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so stop whining and do your own part and encourage others to do like wise....

stop hoping Govt will do it for you
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