0
Bears have no predators other than man. They are not being killed by disease. So apart from global warming the only other way they die is by hunting.
Hunting of polar bears is allowed to native groups in all the countries around the Arctic Circle. There is a quota allowed. In 2011 the quota for Canada is 500 bears. In 2011 in Russia the quota was set to zero. No bears were allowed to be hunted.
What else can I help you with?
How many polar bears have died because of global warming in the last decade?
Nobody is exactly sure how many polar bears die a day from global warming. As of 2006, the IUCN stated that the population of polar bears had declined more than 30% in the last 45 years, due mostly to global warming. In 2008, there were estimated to be 20,000 to 25,000 polar bears in the wild.As the Arctic ice shrinks, the polar bears' habitat becomes threatened, as do the bears.
Why is the ice of the polar bear melting?
The ice at the North Pole is constantly melting because: Pollution clogs up the atmosphere, so it traps greenhouse gases inside the Earth. Greenhouse gases keep us warm, so they're normally a good thing, but now we have wayyyyy to much. Polar bears need ice to live on. (hello, they can't swim forever!) Also, they catch their fish through holes in the ice.
Those global energy has to do with global warming?
Global energy consumption contributes to global warming by releasing greenhouse gas emissions, such as carbon dioxide, into the atmosphere. The burning of fossil fuels for energy production is a major source of these emissions, trapping heat and leading to an increase in the Earth's temperature. Transitioning to renewable energy sources and increasing energy efficiency are crucial steps in combating global warming.
What effect does global warming have on the polar ice caps?
Rising temperatures cause Arctic sea ice to melt earlier in the year, so polar bears are driven to go ashore without sufficient fat reserves to survive late summer and early autumn. Reduction of sea ice means they have to swim more, making them weaker. Some drown. Thinner sea ice makes it harder for them to catch seals. Poorly nourished female bears don't build suitable dens, don't produce as many cubs, and cubs that are born have a lower survival rate. The Western Hudson Bay subpopulation of polar bears are one of the best studied.Warming temperatures mean that ice-floe breakup in western Hudson Bay now happens three weeks earlier than it did 30 years ago, so the bears' feeding season is similarly shortened. The average weight of single female bears was about 290 kg in 1980. In 2004 the average weight was 230 kg. Bear population is Western Hudson Bay declined 22% between 1987 and 2004. Polar bears (Ursus maritimus) live only in the northern arctic region of the planet, the region many people think of as the "North Pole". While they do not actually spend their entire lives on the ice, they depend on pack ice for their survival. Pack ice, also referred to as "ice floes", is ice which forms in arctic regions of the ocean, such as the Arctic Ocean in the north and the ocean surrounding Antarctica in the south.Global Warming is when Global Average Temperatures rise, causing the Earth to gradually become warmer; as the Earth warms, the pack ice begins to melt. Without pack ice Polar bears are in danger because they need pack ice to be able to feed. They travel over the sea ice looking for a tell-tale breathing hole those means that there is a seal underneath. They then jump on the ice to break through and then capture and eat the seal. Polar bears would generally be unable to catch enough food by any other hunting method. So, once the sea ice goes, then so do the polar bears in the wild.It could someday affect them greatly. Climate groups predict that, as the Arctic continues to grow in temperature due to climate change (global warming), two thirds of the world's polar bears could disappear by mid-century.For the best currently available scientific facts, and according to the 2011 International Union for Conservation of Nature (IUCN) Red List (a list of endangered and threatened species, which is one of the three major international endangered species lists cited officially in the Answers.com category of Endangered Species ~ for species that are listed under any status on the list ~ list version 2011.1), polar bears are listed as "Vulnerable." This is just one classification step down from "Endangered" on that listing.The Red List also indicates that the population trend is "Decreasing". And it says that, "Global climate change poses a substantial threat to the habitat of polar bears."The reduction in polar bear population is predicted by IUCN to be greater than 30% loss within 3 generations (45 Years), due to a decline in: area of occupancy, extent of occurrence, and habitat quality. This is related to the melting loss of sea ice, which is the hunting grounds of the bears.Also see a link to the 2011 Red List entry for polar bears below in the related links section.Although there are people who will contend that polar bears are not threatened because they are not in dire need of help (i.e., not even close to becoming extinct), polar bears are classified as being vulnerable. This classification means that they are threatened, just not as threatened as Giant Pandas. See above for why lack of sea ice means death -- and eventual extinction -- for polar bears, a species of bear which depends on sea ice while hunting.Yes, they can only hunt for food on frozen sea ice and global warming is reducing the amount of sea ice and making it arive later and melt earlier - Thus polar bears are going hungry for longer in summer and having their hunting range reduced.
What does global warming do to earth?
Global warming can do many things to the earth. It will burn the rain forest, kill all plants, and melt the polar ice. That will cause flooding in New York, India, California, and a ton of other places. To find more about this look it up on Wikipedia. it can also burn humans and destroy the atmosphere.
Was the environment better for polar bears before global warming?
Yes. Before global warming began melting the Arctic sea ice, polar bears were able to hunt seals most of the year on the ice. Now the ice is melting earlier and earlier each year and the bears are often unable to build up their fat reserves to last them through summer.
Will polar bears lose their habitat because of global warming?
Yes, if we don't stop global warming. Polar bears' habitat is the Arctic ice, which they depend on the ice for their diet of seals, which they can only catch by breaking through the ice into the seal dens. Arctic ice is melting more and more every year. Winter ice is re-freezing later each year. So their habitat is disappearing slowly. Polar bears have to spend more time on land each summer where they have to compete in an unfamiliar habitat with other species of bears for food.
How many polar bears are left because of global warming?
It's impossible to know. Polar Bears range over a huge habitat and there is no easy way to count them. We know that the bears around Canada's Hudson Bay are declining each year, but we have little data on all the other populations.
Are pandas being affected by global warming just like polar bears?
Pandas and polar bears are affected by global warming because their habitats are being destroyed. For the pandas, bamboo forests are being affected by changes in rainfall and temperature. For the polar bears, Arctic sea ice is melting, more and more each year, and this makes the bears' seal-hunting period shorter every year. Weak female bears cannot bear and successfully rear cubs.
How will carpooling help polar bears?
Carpooling reduces greenhouse gas emissions in the atmosphere. These are causing global warming, so carpooling by a few individuals is a small step. Carpooling by thousands would be much better, of course. Slowing global warming will mean that the winter sea ice, that polar bears rely on to catch their prey, doesn't melt so early at the end of each winter.
What is the biggest threat to polar bears caused by global warming?
Overall, the polar bear has a stable population, but some are still hunted on a limited basis. The global warming aspect is still not conclusive, as there has been no warming for 17 years, and the ice pack has grown.
Are polar bears going to extinct this year?
If global warming continues, and there are no signs yet of it even even slowing, then there is a strong possibility that polar bears will become extinct. If their habitat, the sea ice, disappears, they will be forced onto land to compete with other bears for food. They may begin mating with land bears and the polar bear may disappear.Polar bears are not close to extinction now, there are still probably several thousands of them left, though it's difficult to count their numbers with any accuracy.However, polar bears are in danger, because their habitat, the Arctic sea ice, is shrinking because of global warming. Bears feed mostly on seals which they catch on the sea ice, and rely on vast amounts of seal fat eaten from late April till mid-July to last them through the food-free summers.Because of global warming, the sea ice re-forms later each year, so polar bears have to wait longer before they can start to hunt again.Weakened female bears have fewer cubs, and this is the problem.
How can global warming destroy each ecosystem?
It destroys them because it breaks them down one at a time. e.g. the polar bears eat the smaller animals. once they are extinct, the smaller animals overpopulate therefore, the ecosystem is unbalanced
How does the climate affect the polar bear?
Global Warming(Heating)---> Ice melting---> Less Place for Polar Bears to hunt and live---> Polar bears dying and drowning Should ice start to melt in any real quantity in the Arctic, polar bears would migrate further north. The little ice that we have seen melt in the area appears to have been good for them do far as there numbers have gone up exponentially. From a low of 800 many decades ago, we see they have reached between 25,000 and 27,000 now. This means they are not on the endangered species list presently. They ARE listed as a threatened species. Should the Arctic begin to melt to any degree, some groups believe this could then threaten their survival.
How many polar bears have died because of global warming in the last decade?
Nobody is exactly sure how many polar bears die a day from global warming. As of 2006, the IUCN stated that the population of polar bears had declined more than 30% in the last 45 years, due mostly to global warming. In 2008, there were estimated to be 20,000 to 25,000 polar bears in the wild.As the Arctic ice shrinks, the polar bears' habitat becomes threatened, as do the bears.
How many polar bears die due to attacks from other polar bears each year?
* 17 polar bears die every year acording to average
Do polar bears eat beavers?
No. Moose and polar bears do not live in the same place as each other.
