How many polar bears have died because of global warming in the last decade?

Answer 1

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.

Answer 2

It is impossible to know the exact population of polar bears. There are nineteen main groupings of polar bears all around the Arctic Circle. We have no data for seven of these groups.

However, we can examine groups in Canada that have been carefully studied and get an idea from them. The Western Hudson Bay population has been studied for many years. This population of polar bears is one of the furthest south, and so is warmer than others and is being affected by climate change earlier. So patterns we see in Western Hudson Bay are likely to be repeated later with other populations.

Bears in Western Hudson Bay rely on the sea ice for their hunting. They trap seals on the ice and build up their body reserves to last through the summer, when the ice melts.

Sea ice is now melting three or four weeks earlier every summer than it did in 1990. This means the bears are forced onto land where there is little or no food. They have to rely on their body fat to last through till the end of summer, which is now delayed.

Pregnant females go into birthing dens in November. Cubs are born two months later. Mothers and cubs remain in the dens for three months more during which time the mother does not feed. After they leave the den the cubs need their mother's milk for up to 30 months.

In 1980 the average weight of a female polar bear here was 650 pounds (300 kilograms). In 2004 the average weight was 507 pounds (230 kilograms). Weak and thin female bears can not have cubs.

The Hudson Bay bear population in 2001 was about 1200 bears. In 2011 it is about 900.

A:Polar bears are on the brink of extinction, and we need to do something to help them! They are being killed when people hunt them for sport or "food", but this year a committee led by the Inuit/Native People (who get paid by outsiders more than $2500 to help them slaughter a bear) brought the number of polar bears to be killed up to 105 per year instead of what the rest of the committee wanted- to lower that number to 64, also Greenland added 68 to that number of bears, and the polar bears can't survive with this number of them being killed each year, along with global warming that is also causing their numbers to decrease and their habitat to shrink rapidly. You need to pay attention to this because what happens to the Arctic is an indication of what is going to happen to the rest of the world!

Answer 3

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. So in 45 years, the population declined by about 10,000 individuals. There are 16,128 days in 45 years, so polar bears have declined by about 0.62 individuals per day due to global warming.

Answer 4

In some ways.

They're not really that bothered by the melting as such, as that has been going on for ages. What does bother them is that it takes longer for the sea to freeze over again, and without the ice sheet, they can't hunt for seals resting on the ice which is their main food source.

Answer 5

They live on the ice and hunt for food on it. If the ice caps are completely gone, the polar bears will die from either starvation or hypothermia.

Answer 6

None, as far as we know for sure. Polar bears number around 25000, and are not considered endagered species.

Answer 7

There is no evidence that global warming has reduced the numbers of polar bears. In fact, their population is fairly static, at around 22000.

Answer 8

10