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How did polar bears survive earlier warming trends?
Answered by Dr. Andrew Derocher, professor of biology at the University of Alberta and chair of the IUCN/SSC Polar Bear Specialist Group. “Today’s projected climate warming is far more intense than anything the species has seen in its evolutionary history.” more...
Can we save polar bears by moving them to Antarctica?
Answered by polar bear scientist Scott Schliebe of the U.S. Fish & Wildlife Service. “Although it may seem an obvious solution, the risks outweigh the benefits.” more...
Are polar bear populations increasing?
Q. I'm confused about polar bear numbers. Some news reports state that polar bears should not be listed as a threatened species—and, in fact, their numbers. . . more...
Could polar bears learn to hunt like grizzlies?
Answered by Dr. Andrew Derocher, chair of the IUCN/SSC Polar Bear Specialist Group and a polar bear scientist with the University of Alberta in Edmonton, Canada. “Climate change is by far the biggest threat to polar bears and finding viable conservation measures is important.” more...
Are Canadian scientists opposed to listing the polar bear as threatened, as some news organizations have reported?
Answered by Canadian polar bear scientist Andrew Derocher, who also chairs the IUCN/SSC Polar Bear Specialist Group. “There are very few other polar bear scientists in Canada so it is unclear who these scientists are who might be opposing the listing.” more...
Can you tell me all about satellite collars and why scientists use them?
Answered by Dr. Andrew Derocher, a polar bear scientist with the University of Alberta in Edmonton, Canada. Dr. Derocher is also the past chair of the IUCN's Polar Bear Specialist Group. “We can get a good overview of the population’s ecology by following just a few animals intensively.” more...
Could floating platforms be used to save the polar bear from ice loss?
Answered by Dr. Steven C. Amstrup, Ursid & Arctic Marine Team Leader at the U.S. Geological Survey's Alaska Science Center in Anchorage, Alaska. He also serves on PBI's Wild Bear Advisory Committee. “Giving polar bears a place to rest doesn't solve their main problem. . .” more...
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