Polar Bear Is Named 'Threatened' Species

"We must safeguard our environment while also protecting our economy," said William Kovacs, vice president of environmental affairs at the U.S. Chamber of Commerce. "Today's decision will protect the polar bear while also protecting American jobs and businesses."

Sen. James M. Inhofe (R-Okla.), a leading congressional skeptic on climate change, said that "the decision to list the polar bear as 'threatened' appears to be based more on politics than science," adding: "With the number of polar bears substantially up over the past 40 years, the decision announced today appears to be based entirely on unproven computer models."

Part of the uncertainty surrounding the polar bears' fate stems from the fact that there are 19 sub-populations in five different countries -- Norway, Russia, Canada, Denmark and the United States -- and these groups are faring differently.

Researchers estimate that the world population of the bears ranges from 20,000 to 25,000, although the exact figure remains unknown. In Canada's western Hudson Bay, their numbers are declining, but in Norway they are on the rise.

Still, climate scientists are increasingly concerned that melting sea ice could lead to the polar bears' demise within decades. Northern latitudes are warming twice as rapidly as the rest of the world, according to a 2004 assessment, and some computer projections forecast that ocean temperatures in the Arctic may rise 13 degrees Fahrenheit by the end of the century.

In September, reports by the U.S. Geological Survey suggested that polar bears living in two of the four regions under analysis would be extinct by 2050, and in a third by 2075.

Steven C. Amstrup, a senior polar bear researcher at the USGS's Alaska Science Center, said scientists are beginning to see signs that polar bears in the southern Beaufort Sea -- which stretches from Barrow, Alaska, to the Canadian border -- may be mirroring earlier declines in Canada's western Hudson Bay.

"We're seeing declining physical stature, declining survival in cubs," Amstrup said in an interview.

Yesterday's decision marked the resolution of a lengthy battle between environmental groups and the Bush administration, though it is not likely to be the last one over the issue. The Center for Biological Diversity, Greenpeace and the Natural Resources Defense Council petitioned to list the polar bear in 2005. When the Interior Department took no action, the groups sued. As part of a settlement, the administration proposed listing the polar bear as threatened in late 2006, but it delayed finalizing the rule until the groups took the government to court again and won a ruling setting a deadline of today.

Siegel, at the Center for Biological Diversity, said it remains unclear how the administration will implement the decision -- the first time in more than two years that it has added a species to the protected lists -- but she said the organization would "challenge any attempts to reduce any protections to the species."

"The administration has been brought kicking and screaming to this decision," said Jamie Rappaport Clark, who headed Fish and Wildlife under President Clinton and is now executive vice president of Defenders of Wildlife. "This decision isn't over by a long shot."

One immediate result of the new rule is that sportsmen who hunt polar bears in Canada can no longer bring their trophies into the United States. Jeffrey Flocken, who directs the District office of the International Fund for Animal Welfare, called the change significant. "Closing the trophy hunting loophole removes an unnecessary threat to the polar bear's survival," Flocken said.

Interior spokeswoman Tina Kreisher said the ruling will still allow energy exploration in Alaska and will not affect power plants and other greenhouse gas emitters in the contiguous United States, but that the department would establish a management plan for polar bears and monitor their populations.

"There isn't a power plant right next to these bears," Kreisher said. "That's the quandary here."

Staff researcher Magda Jean-Louis contributed to this report.