Abstract
This nine page paper examines why global warming has become the primary threat facing polar bears. The writer looks at the Arctic polar bear population, which has been estimated to be approximately twenty-five thousand, of which about fifteen-thousand are in Canada, and has been impacted in a number of negative ways by climate change caused by air pollution. For example, the writer notes studies which have documented measurable effects in the body sizes and reproductive success of bears at Hudson's Bay and in other Arctic regions, and data that indicates that these changes are due to gradual climate change in the Arctic because of global warming.

From the Paper
"Based upon studies conducted over the last twenty years, many scientists have concluded that global warming has become the primary threat facing polar bears. The Arctic polar bear population, which has been estimated to be approximately twenty-five thousand, of which about fifteen-thousand are in Canada, has been impacted in a number of negative ways by climate change caused by air pollution. (Stirling 12) For example, studies have documented measurable effects in the body sizes and reproductive success of bears at Hudson's Bay and in other Arctic regions, and data indicates that these changes are due to gradual climate change in the Arctic because of global warming."

Tags:arctic, polar, bears

Abstract
The paper explores how humans pose a threat to the survival of the earth. The paper discusses the problem of global warming. Although some deny that it is a problem, this paper argues that it is indeed a problem, and that it poses a massive threat to the earth, and specifically, to polar bears.

Tags:polar, bears, warming

Abstract
This paper briefly discusses how climate change has directly affected polar bears due to their dependence on ice and cold as means for survival. The paper argues that if we do not change our current daily actions, polar bears have a high probability of facing extinction and how expected changes affecting polar bears due to climate change include increased interaction with humans and polar bears, reduced access to food supplies, reduction in population size, reduced body composition and lower adult survival rates.

From the Paper
"Polar bears are categorized as "indicator" species because their welfare reveals the general state of an ecosystem. The increasing reduction rate of polar bears indicates the poor conditions of the Arctic. "Decreasing sea ice negatively impacts population growth. Climate change models predict that, as global temperatures rise, periods of reduced sea ice will occur more frequently" (Cole). Although climate change varies and episodes of reduced ice increase, polar bear populations "can't recover in between bad years, so they end up declining over time," stated Hal Caswell, a senior scientist at Woods Hole Oceanographic Institution (Cole). Recorded evidence projects findings of a decreased polar bear population. In the Hudson Bay area in Canada, there has been a twenty five percent reduction in the amount of polar bears than there were twenty five years ago (Cole)."

Tags:extinction, ice, ecosystem

Abstract
This paper examines the eating and sleeping habits of bears including their hunting and hibernation customs. It also looks at their mating habits and the "relationships" between mates and offspring. A physical appearance of each type of bear is provided through photographs.

From the Paper
"Bears are animals that are found all over the world. No matter what the climate, you can find a species. Most bears have the same features; powerfully built bodies, long heads, short rounded ears, and small eyes (Grizmick's Encyclopedia). Most bears also have five long toes with arched claws that are incredibly sharp. In this paper I have decided to discuss the three most predominant species. " No other animal has made such a strong impression on the peoples of the Northern Hemisphere; as long as the lion was still unknown, the bear was considered to be the king of beasts. (Grizmick's Encyclopedia)." "

Tags:mating, habit, hibernation, eating, sleeping, hunting

Abstract
The paper explores the debate over whether it is timely to remove the grizzly bear's federal status as an endangered species and relates that despite many claims that the bears are on a path to recovery, their numbers are still at dangerous levels. The paper addresses the growing concerns over bears hunted outside of their recovery zone, as well as the worry that delisting the bears will set the precedent that other still-endangered species can be removed once arbitrarily set "goals" are achieved. The paper also considers the concerns arising over the damaging of the bear's habitat and concludes that the retention of the Yellowstone grizzly bear on the list of endangered animals must be of paramount environmentalist concern.

From the Paper
"Grizzly bears numbered in the tens of thousands in the early decades of the pioneering of the Americas. Since then, their numbers have fallen drastically to, by some estimates, no more than 1,200. Even more alarming, these bears which previously lived on several million acres of land now find themselves occupying as little as 1 to 2 percent of their previous habitat. In response, these bears were placed under the protection of the Endangered Species Act in July of 1975 (Hagarty). Under this act, the grizzlies were protected in two distinct ways: the first protected the bears physically from being, "harass[ed], harm[ed], pursue[d], hunt[ed], [shot], wound[ed], kill[ed], trap[ed], capture[d], or collect[ed]", according to the text of the act (Hagarty). The second protected specifically their habitat from development."

Tags:endangered, species, hunting, recovery, zone, habitat, whitebark, pine

Abstract
This paper discusses how global warming is threatening the polar bear population. It describes the historical threat of humans to polar bears and how global warming is forcing some polar bear populations to move south and inland in their search for more ample food supplies and therefore into contact with humans. The paper briefly looks at possible solutions to the problem.

Table of Contents:
How Global Warming is Threatening Polar Bears
The Historic Human Threat
Global Warming: Humans vs. Polar Bears
Conclusion

From the Paper
"Protecting the polar bear from the direct and indirect threats posed by global warming is going to require a multi-national effort. First, the nations of the world, particularly those with a stake in protecting polar bears, must become more serious about global warming. For example, the United States can sign and adhere to the Kyoto Protocol, which calls for the reduction of harmful greenhouse gases, among other measures. A decade after this landmark agreement was first struck, the U.S. is still not a signatory, even though it only calls for a 5 percent reduction in emissions by industrialized nations (Hillman, et.al., 168). The U.S. is also the world's largest producer of carbon emissions, as the average American's carbon contribution is five time the world average (Hillman, et.al., 35)."

Tags:Inuit climate habitat, greenhouse gas

Abstract
This paper reveals that as a result of continued development, poaching, and destruction of habitat, only a scant 1 percent of grizzly bears remained until they were finally granted federal protection. The paper discusses the debate over whether or not the bear's federal status can be removed as an endangered species. The paper considers the fact that although Yellowstone grizzlies are on a path to recovery, their numbers are still at dangerous levels. Concerns over the damage being done to the grizzly's habitat and food sources are also considered. The paper contends that to protect their lives and their habitat, the Bush administration's policy of ceaseless gas and oil development must be ceased, while retaining the Yellowstone grizzly bear on the list of endangered animals must be of paramount environmentalist concern.

From the Paper
"Grizzly bears numbered in the tens of thousands in the early decades of the pioneering of the Americas. Since then, their numbers have fallen drastically to, by some estimates, no more than 1,200. Even more alarming, these bears which previously lived on several million acres of land now find themselves occupying as little as 1 to 2 percent of their previous habitat. In response, these bears were placed under the protection of the Endangered Species Act in July of 1975. Under this act, the grizzlies are protected in two distinct ways: first, humans may not, "harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect" the bears, according to the text of the act (Ryan & Schuler). Secondly, the act specifically protects against the development of existing grizzlies' habitation."

Tags:endangered, species, extinction, habitat, whitebark, pine, gas, oil, drilling

Abstract
"Collaborative efforts from the United States Fish and Wildlife Services conducted analyses on the threat, population and sea ice habitats in Southern and Western Hudson Bay, Canada. The threat of climate warming through ecological changes has declined for the polar bears. It seems that the currents stream down counter-clockwise and the winds stream north-western and the ice occurs late in the year from the Ontario coast (Etkin 21). "

Tags:polar bears, western hudson bay, population

Abstract
As a result of global warming, polar bears will become extinct if nothing is done to change this alarming climate trend. Experts relay that the entire planet will pay a high price if the polar bear and other species are lost forever to extinction, as all ecosystems will be negatively affected by with their loss.

From the Paper
Running Head: POLAR BEAR Investigation of a Species: The Polar Bear By Student's Name Student's ID Number March 2, 2008 Introduction As a result of global warming, polar bears will become extinct if nothing is done to change this alarming climate trend. Experts relay that the

Tags:polar, environment, global

Abstract
This paper takes the classic children's story of "Goldilocks and the Three Bears" and puts an interesting spin on it. By interpreting the story through modern eyes, the author of the paper provides a humorous version of an all-time favorite.

From the Paper
"When reading the classic story of Goldilocks and the three bears, one often wonders what drove Goldilocks to do the dastardly things that she did. The overwhelming evidence would seem to indicate that Goldilocks was a vagrant who scoured the forest ,looking for people to take advantage of, or possibly steal from, because of her lack of parental units. She had no home or food; she was a drug addict, and an overall troublesome girl."

Tags:child, fairy, fractured, tails, vagrant