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www.carbonbrief.org/polar-bears-and-climate-change-what-does-the-science-say

“Loss of Arctic sea ice owing to climate change is the primary threat to polar bears throughout their range… Our findings support the potential for large declines in polar bear numbers.” Trends in sea-ice from 1979 – 2014 for 18 of the 19 polar bear subpopulations.

www.worldwildlife.org/pages/polar-bears-and-climate-change

Polar bears (Ursus maritimus) are the poster child for the impacts of climate change on species, and justifiably so.To date, global warming has been most pronounced in the Arctic, and this trend is projected to continue. There are suggestions that before mid-century we could have a nearly ice-free Arctic in the summer.

polarbearsinternational.org/climate-change

Polar bears never have faced periods as warm as we could see in the next 50 years. There have been warmer periods in the past, but they were not only cooler than what we will experience if we don’t reduce greenhouse gas emissions, they were part of natural cycles of warming and cooling.

polarbearsinternational.org/.../10-facts-about-arctic-sea-ice

The polar bear's main prey, the ringed seal, relies on sea ice, too—for giving birth to and raising their pups. Arctic sea ice is important to people living in the North and to our global climate. In fact, the Arctic is sometimes called the earth's air conditioner because the sea ice helps cool the planet by reflecting some of the sun's light ...

www.nationalgeographic.com/news/2018/02/polar-bears-starve-melting-sea-ice...

Polar bears are considered endangered in the U.S. and are listed as “vulnerable” by the IUCN, because their sea ice habitat is under threat from climate change. Not Built for Walking

www.cfact.org/2020/01/22/polar-bears-the-end-of-a-climate-delusion-icon

One of the climate delusion’s greatest frauds was issued by the Center for Biological Diversity which said “Climate change is drowning and starving polar bears. If greenhouse gas fueled climate change keeps melting their sea ice habitat, an arctic apocalypse will wipe them out in a century – and they will disappear from the United States ...

www.worldwildlife.org/publications/effects-of-climate-change-on-polar-bears...

This fact sheet explains the current statistics and facts about polar bears and their habitat, asserting that, based on conservative estimates on sea ice shrinkage rates, two-thirds of the polar bear population would become extinct by 2050.

blog.nature.org/science/2013/12/03/what-science-polar-bear

While climate change poses a significant threat to polar bears, in some areas hunting them is also a factor in their decline. If you have read some of the arguments from climate change skeptics about polar bear populations increasing, note that a) most populations are in decline, b) there is not very good baseline data on polar bear populations, c) the 1973 restrictions on hunting led to a ...

www.worldwildlife.org/stories/polar-bear-population-decline-a-wake-up-call-for...

That’s the stunning population loss for polar bears in the southern Beaufort Sea. The news comes from a new study linking the dramatic decline in this polar bear subpopulation in northeast Alaska and Canada to a loss of sea ice due to climate change. How does climate change affect polar bears so dramatically? Polar bears rely on sea ice to ...

www.worldwildlife.org/species/polar-bear

Scientists have divided the total polar bear population into 19 units or subpopulations. Of those, the latest data from the IUCN Polar Bear Specialist Group show that one subpopulation is in decline (Southern Beaufort Sea) and that there is a high estimated risk of future decline due to climate change and data deficiency.