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Tag: polar bears
'Fattest' polar bears survive climate change
2013-03-20 08:30:00| Climate Ark Climate Change & Global Warming Newsfeed
Telegraph: The polar bears of Hudson Bay, Canada migrate onto land in the summer when the sea ice melts, relying on fat reserves to survive until the sea re-freezes in late November or early December. During the winter and spring months they use the sea ice to hunt their prey of seals. But the bears were coming to land earlier and leaving later in recent years as a result of climate change which was reducing the ice, researchers writing in the Journal of Animal Ecology from the British Ecological Society...
Tags: change
climate
climate change
bears
Melting Sea Ice Keeps Hungry Polar Bears on Land
2013-03-20 01:08:00| Climate Ark Climate Change & Global Warming Newsfeed
LiveScience: Polar bears, the iconic victims of climate change, are shifting their migration patterns because of changes in sea ice. The bears are arriving on land earlier and departing later, a new study found, and it's threatening their access to food. A team of researchers studied the migration patterns of polar bears (Ursus maritimus) in Hudson Bay, Canada, using satellite-tracking data collected between 1991 and1997 and 2004 and 2009. They found that the rate at which sea ice melts and re-freezes, as...
Could climate change cost polar bears their white fur?
2013-03-18 23:01:00| Climate Ark Climate Change & Global Warming Newsfeed
Anchorage Daily News: It's long been known that the brown bears found on islands in Southeast Alaska are more closely related to polar bears than other brown bears. Now scientists wonder if they're a harbinger of what's to come for polar bears in the warming high Arctic. Researcher Beth Shapiro of the University of California in Santa Cruz told the Canadian Press the bears on Admiralty, Baranof and Chichagof islands (known as the ABC bears) appear to be descended from a polar bear population that got cut off from other...
Tags: change
white
cost
climate
Polar bears: politics trumps precaution every time | Damian Carrington
2013-03-07 10:58:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: It all comes down, once again, to our old friend the precautionary principle. And, once again, the world has told our old friend to get stuffed. The 178 nations who make up the Convention on Trade in Endangered Species summit in Bangkok were essentially asked this question: is the future threat to polar bears from the rapid melting of sea ice by global warming so great that the additional pressure of hunting for rugs should be outlawed? The US, allied with Russia, argued yes, absolutely. They...
Tags: time
politics
bears
polar
Starving polar bears
2013-02-16 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Living on Earth: Polar Bears have long been the poster species for the problem of climate change. But a new paper in Conservation Letters argues that supplemental feeding may be necessary to prevent polar bear populations from going extinct. Polar bear expert Andrew Derocher from the University of Alberta joins Host Steve Curwood to discuss how we can save the largest bear on the planet. Transcript CURWOOD: It's Living on Earth, I'm Steve Curwood. The polar bear has become an icon of the melting arctic, the...
Tags: bears
polar
starving
polar bears