Polar Bears May Face Demise
77950
Global warming could cause polar bears to go extinct by the end of the century by eroding the sea ice that sustains them, according to the most comprehensive international assessment ever done of Arctic climate change.
679201
Global warming and disappearing sea ice in the Southern Ocean are causing food shortages that could threaten Antarctic whales, seals and penguins, scientists said Wednesday.
116224
SILVER SPRING, Maryland  - A new movie showing young polar bears and walruses struggling toward adulthood in a melting Arctic puts a pair of charismatic faces on the global warming threat.
460196
Recently, a polar bear cub was rejected by its mother in a German zoo.  Had this happened in the wild, the cub would have been left to fend for itself, and would quite likely have died.  In this case, however, zookeepers decided to care for the cub by hand, a decision which has ironically prompted outrage from at least one animal rights group, who have suggested that it would be more humane to kill the cub, rather than allow it to become dependent on humans for its entire life.    This is an interesting point, and one which has dark but intriguing ramifications when applied to certain other species - namely, homo sapiens.  Artificially prolonging the lifespan of genetically inferior instances of the species runs counter to the purpose of evolution.  It makes us all weaker.
100932
Federal officials said Monday that they will need a few more weeks to decide whether polar bears need protection under the Endangered Species Act because of global warming.
154554
Krill, the heart of the rich Antarctic food chain that nourishes whales, seals and penguins, have declined by more than 80 percent in the past 25 years in key ocean regions, according to a new study that links the loss to warming temperatures.
412665
By ANN SANNER WASHINGTON - Environmental activists, hunters and oil industry representatives spoke at a public hearing Monday night on whether the U.S. government should list polar bears as a threatened species.
434971
The conservation agency World Wildlife Fund, or WWF, has warned that man-made chemicals pose a serious threat to polar bears. The WWF says three new scientific studies show
734845
Global warming could cut a swathe through the planet's species over the coming centuries, warns a study released Wednesday that shows a link between rising temperatures and mass extinctions reaching back half a billion years.
486061
Frogs, butterflies, polar bears, and penguins are dying out from climate change much faster than researchers had previously expected, a new study shows.
731992
Female polar bears weigh nearly 150 pounds (65 kilograms) less on average than they did 25 years ago, because the ice on which they hunt is melting earlier, research shows.
29327
Polar bears could be decades from extinction, a survey into global warming has found. Steve Connor reports on the crisis that threatens the polar ice-cap.
277144
REYKJAVIK: Arctic people aim to team up with tropical islanders in a campaign against global warming, arguing that polar bears and palm-fringed beaches stand to suffer the most.
487171
Shrinking polar ice caps will cause at least two-thirds of the worldâs polar bears to disappear by 2050, government scientists reported on Friday.
370532
IQALUIT, Nunavut (CP) - Inuit hunters will be able to kill nearly one-third more polar bears in Nunavut this year because of concerns that an increasing number of the predators are prowling the streets of some Arctic communities.
300115
By DAN JOLING  ANCHORAGE, Alaska - Two conservation groups sued the federal government Tuesday claiming marine mammal regulators are not doing enough to protect polar bears and walruses against the combined threat of oil and gas exploration and global warming.
614850
Two-thirds of the world's polar bears will be killed off by 2050 &#151; and the entire population gone from Alaska &#151; because of thinning sea ice from global warming in the Arctic, government scientists forecast Friday.