Sentences with phrase «threatens polar bear populations»

Nearly all said that global warming threatens polar bear populations.

4, Issue 3, pp. 73 - 84) announcing that global warming was not threatening polar bear populations.

Not exact matches

After a report about four drowned polar bears seen far out at sea, they were put on the USA threatened list — even though there has been no demonstrated diminution in population.

A comprehensive review (pdf) by the US Fish and Wildlife Service concluded that shrinking sea ice is the primary cause for the decline seen in these populations, and it recently proposed listing polar bears as threatened (pdf) under the Endangered Species Act.

The polar bear, a species where the population has grown from 8,000 to 25,000 since 1950 is not «threatened», and definitely not «endangered».

Models created by experts said such a dramatic loss of sea ice would cause a sharp drop in the polar bear population and threaten their very survival.

WASHINGTON, Dec. 27 — The Interior Department proposed Wednesday to designate polar bears as a threatened species, saying that the accelerating loss of the Arctic ice that is the bears» hunting platform has led biologists to believe that bear populations will decline, perhaps sharply, in the coming decades.

The International Conservation Union, in its latest red list of endangered wildlife, gave polar bears threatened status in May, projecting a decline of 30 percent by midcentury from current populations, mainly due to projected losses of sea ice in a warming world.

Tagged Amstrup, BBC, Carbon Brief, declining population, declining sea ice, Derocher, GWPF, IUCN Polar Bear Specialist Group, Kara Sea, media attention, PBSG, polar bears, population estimates, rapid response team, The Times, threatened, vulnerable, Webster

Tagged aerial survey, early breakup, endangered, invalid methods, later - than - average breakup, mark - recapture, polar bear, population estimate, Seth Stapleton, Southern Beaufort, Southern Hudson Bay, threatened, US Fish and Wildlife Service, Wapusk National Park, western hudson bay

Far from being endangered, vulnerable, or threatened, polar bears are thriving; their populations have exploded in virtually all of their habitats of the circumpolar nations.

Tagged Beaufort Sea, climate change, Derocher, Eastern Beaufort, extinction, feeding, future, global warming, IUCN Polar Bear Specialist Group, models, Pilfold, polar bear, population, predation, predictions, Red list, ringed seals, Southern Beaufort, Stirling, thick spring ice, threatBear Specialist Group, models, Pilfold, polar bear, population, predation, predictions, Red list, ringed seals, Southern Beaufort, Stirling, thick spring ice, threatbear, population, predation, predictions, Red list, ringed seals, Southern Beaufort, Stirling, thick spring ice, threatened

Secretary Salazar has so far defended the Bush - era «threatened» designation, claiming that threats to the species are only of concern in the future — notwithstanding the fact that polar bears are already drowning and starving as a result of sea - ice loss, with many populations declining.

And so, along with scientists who believe the bears are severely threatened, the producers also interviewed Mitch Taylor, a Canadian expert on polar bears who doesn't believe the bears are endangered (he says only two of the 19 polar bear populations are in decline; the program itself said half are in decline) and doesn't believe global warming is primarily human - caused or potentially catastrophic.