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05-22-2009, 08:13 AM
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It's about education:
Polar bear - Wikipedia, the free encyclopedia
polar bear ( Ursus maritimus) is a bear native to the Arctic Ocean and its surrounding seas. Being the world's largest carnivore found on land, together with the Kodiak Bear they constitute the largest members of the Bear family. [3] An adult male weighs around 400–680 kg (880–1,500 lb), [4] while an adult female is about half that size. Although it is closely related to the brown bear, it has evolved to occupy a narrow ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice, and open water, and for hunting the seals which make up most of its diet. [5] Although most polar bears are born on land, it spends most of its time at sea, hence its name meaning " maritime bear", and can hunt consistently only from sea ice, spending much of the year on the frozen sea.
The polar bear is classified as a vulnerable species, with 5 of the 19 polar bear subpopulations in decline. [6][7] For decades, unrestricted hunting raised international concern for the future of the species; populations have rebounded after controls and quotas began to take effect. For thousands of years, the polar bear has been a key figure in the material, spiritual, and cultural life of Arctic indigenous peoples, and the hunting of polar bears remains important in their cultures.
The IUCN now lists global warming as the most significant threat to the polar bear, primarily because the melting of its sea ice habitat reduces its ability to find sufficient food. The IUCN states, "If climatic trends continue polar bears may become extirpated from most of their range within 100 years." [1] On May 14, 2008, the United States Department of the Interior listed the polar bear as a threatened species under the Endangered Species Act.
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05-22-2009, 08:40 AM
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Opinionated Libertarian
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And what does that have to do with Polar Bear Drowning, and how does showing a lie educate anyone?
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05-22-2009, 11:22 AM
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"Habitat

A cub nursing
The polar bear is often regarded as a marine mammal because it spends many months of the year at sea. [25] Its preferred habitat is the annual sea ice covering the waters over the continental shelf and the Arctic inter-island archipelagos. These areas, known as the "Arctic ring of life", have high biological productivity in comparison to the deep waters of the high Arctic. [21][26] The polar bear tends to frequent areas where sea ice meets water, such as polynyas and leads (temporary stretches of open water in Arctic ice), to hunt the seals that make up most of its diet. [27] Polar bears are therefore found primarily along the perimeter of the polar ice pack, rather than in the Polar Basin close to the North Pole where the density of seals is low. [28]
Annual ice contains areas of water that appear and disappear throughout the year as the weather changes. Seals migrate in response to these changes, and polar bears must follow their prey. [26] In Hudson Bay, James Bay, and some other areas, the ice melts completely each summer (an event often referred to as "ice-floe breakup"), forcing polar bears to go onto land and wait through the months until the next freeze-up. [26] In the Chukchi and Beaufort seas, polar bears retreat each summer to the ice further north that remains frozen year-round."
From The Polar Bear article (Wikipedia).
Not a lie, Tom.
If North America were covered with about 10' of water, as would happen if the Great Lakes somehow emptied(this example is for ilustrative purposes- NOBODY in the scientific community thinks this will happen), how would the human population here be affected, Tom?
Last edited by Geechie North; 05-22-2009 at 11:41 AM..
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05-22-2009, 11:50 AM
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Opinionated Libertarian
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Well you example is just as likely to happen as a Polar bear is to drown in the arctic, since the ice has actually been getting thicker not thinner....
Last edited by OleTomCat; 05-22-2009 at 11:50 AM..
Reason: -5 spelling
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05-22-2009, 12:12 PM
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Quote:
Originally Posted by OleTomCat
Well you example is just as likely to happen as a Polar bear is to drown in the arctic, since the ice has actually been getting thicker not thinner....
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I've not heard about the ice getting thicker ... what is your scientific source?
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05-22-2009, 12:15 PM
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Investigating Sea Ice Decline
"But there is still reason for concern; the scientists are almost certain the ice extent will fall below the minimum of 2005, which was the second lowest year on record. With a probability of 80% the minimum ice extent in 2008 will be in the range between 4.16 and 4.70 million km2."
Like I said, education.
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05-22-2009, 12:44 PM
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Opinionated Libertarian
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The study I found and posted a half dozen pages ago shows that the ice has been thickening not thining..
To use your words, Education...
See Ice is not where the polar bears live, they live on the Ice Caps and the Ice caps are getting thicker.
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05-22-2009, 12:45 PM
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Quote:
Originally Posted by OleTomCat
The study I found and posted a half dozen pages ago shows that the ice has been thickening not thining..
To use your words, Education...
See Ice is not where the polar bears live, they live on the Ice Caps and the Ice caps are getting thicker.
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Re-Post your source, Tom. Or at least give a better idea of where to find it on this thread , please.
That's how the local variation of peer review works.
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05-22-2009, 12:46 PM
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Opinionated Libertarian
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I did about a half dozen pages ago, RIF......
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05-22-2009, 12:48 PM
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I see.
Well, at least can you give the source; Name of publication, etc.
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