US sets aside 'critical habitat' for polar bear in Alaska

The Obama administration is setting aside 187,000 square miles (484,330 sq. kilometers) in Alaska as a "critical habitat" for polar bears, an action that could add restrictions to future offshore drilling for oil and gas.

The total, which includes large areas of sea ice off the Alaska coast, is about 13,000 square miles (33,670 sq. kilometers), or 8.3 million acres (3.36 million hectares), less than in a preliminary plan released last year.

Tom Strickland, assistant secretary for fish, wildlife and parks at the Interior Department, said the designation would help polar bears stave off extinction, recognizing that the greatest threat is the melting of Arctic sea ice caused by climate change.

"This critical habitat designation enables us to work with federal partners to ensure their actions within its boundaries do not harm polar bear populations," Strickland said. "We will continue to work toward comprehensive strategies for the long-term survival of this iconic species."

Designation of critical habitat does not in itself block economic activity or other development, but requires federal officials to consider whether a proposed action would adversely affect the polar bear's habitat and interfere with its recovery.

Nearly 95 percent of the designated habitat is sea ice in the Beaufort and Chukchi seas off Alaska's northern coast. Polar bears spend most of their lives on frozen ocean where they hunt seals, breed and travel.

Alaska Gov. Sean Parnell and the state's oil and gas industry had complained that the preliminary plan released last year was too large and dramatically underestimated the potential economic impact. The designation could result in hundreds of millions of dollars in lost economic activity and tax revenue, they said.

The U.S. Fish and Wildlife Service said reductions included in the final rule were mostly due to corrections that more accurately reflect the U.S. border in the Arctic Ocean. Five U.S. Air Force radar sites were exempted from the final rule, as were Native Alaskan communities in Barrow and Kaktovik, Alaska.

The Interior Department has declared polar bears "threatened," or likely to become endangered, citing a dramatic loss of sea ice. Officials face a Dec. 23 deadline to explain why the bears were listed as threatened instead of the more protective "endangered."

Kassie Siegel, a lawyer for the Center for Biological Diversity, an environmental group that has filed a lawsuit to increase protections for the polar bear, hailed the designation of critical habitat.

"Now we need the Obama administration to actually make it mean something so we can write the bear's recovery plan – not its obituary," she said.

Siegel called for the administration to impose a moratorium on oil and gas drilling in bear habitat areas. "An oil spill there would be a catastrophe," she said. "That seems like an understatement."

The Arctic Slope Regional Corp., which advocates for Alaska Native business interests, said in a statement that the decision disproportionately impacts Alaska Natives and called the designation the "wrong tool" for conserving the polar bear because it does nothing to address climate change.

"The burden of the impacts will be felt by the people of the Arctic Slope," said Tara Sweeney, vice president of external affairs for ASRC, which is based in Barrow, Alaska. "This is a quality of life issue for our people."

Kara Moriarty, deputy director of the Alaska Oil and Gas Association, said the action would hurt oil and gas exploration in Alaska by creating more delays and added costs to projects in what already is a high-cost environment, she said.

"The companies and the industry will be required to go through more permitting and create mitigation measures without a direct benefit to the polar bear or oil and gas development," Moriarty said. "The Fish and Wildlife Service has found over and over again our activities pose no threat to the polar bear."

Source:
The Guardian, "US sets aside 'critical habitat' for polar bear in Alaska", accessed December 6, 2010

Arctic species under threat, report warns

Polar bears clinging to melting ice sheets have become one of the most frequently used images to portray the perils of climate change.

But a new report by the U.S. Center for Biological Diversity (CBD) and UK-based Care for the Wild International (CWI) is bringing attention to the predicament of other equally endangered Arctic species.

Seventeen Arctic animals are highlighted in "Extinction: It's Not Just for Polar Bears."

Shaye Wolf, lead author and climate science director of the CBD told CNN: "The plight of the polar bear due to global warming is very well known and familiar. But many other Arctic species are suffering a similar fate -- from plankton all the way to the great whales." (Right: narwhale)

The impacts of climate change are "unfolding far more rapidly in the Arctic than any other area on the planet" threatening its ecosystem, the report said.

A 2009 study by Donald K. Perovich and Jacqueline A Richter-Menge -- "Loss of Sea Ice in the Arctic" -- reported that the sea ice extent in 2007 was one million square miles below the average figure recorded between 1979 and 2000.

This, and other data suggests, say scientists, that summer sea ice could completely disappear in the Arctic by 2030.

The ice retreat is already spelling trouble for marine mammals like the Pacific walrus and the harp seal.

Pacific walruses, (right) like many of the mammals in the report, are sea ice dependent says Wolf, with many having already suffering population declines.

"As we speak, there are 10 to 20,000 walruses holed up on Alaskan Arctic coastline. And that is attributable to sea ice loss," Wolf says.

"Walruses need sea ice for resting because they can't swim continuously. When they lose that sea ice, especially moms and calves, they are forced to come to shore -- where calves are very vulnerable to be trampled in stampedes."

Last year, Wolf says the stampede claimed 131 young walruses.

The number was even higher off the Russian coast in 2007 where several thousand calves died when around 40,000 walruses were pushed ashore.

Ocean acidification -- caused by increased uptake of carbon dioxide -- is happening more quickly in the Arctic than in warmer waters, says Wolf.

Shell-building marine creatures like the sea butterfly (Clione limacina) are particularly vulnerable to acidification. (Right: sea butterfly)

Their loss would be potentially devastating for other species.

On land, the Arctic fox -- found on the southern edges of the Arctic tundra -- is facing "myriad threats from climate change," including shrinking sea ice and tundra, declines in lemming prey and increased competition from the larger, more dominant red fox -- which is edging north as temperatures rise.

All the animals in the report are at risk of extinction due to climate change says Wolf.

"What is going on in the Arctic isn't something that we can consider completely remote from ourselves. Actually, it's a fantastic barometer of what is going to happen in the rest of the world," CWI's Rebecca Taylor told CNN.

"The Arctic is ground zero for climate change and we're already pushing many species towards extinction. The key to preventing their loss is reducing our greenhouse gas emissions -- specifically carbon dioxide -- to a level of 350ppm or below. That is a level many leading scientists have called for to restore Arctic sea ice," Wolf said.

Source:
Cable Network News, "Arctic species under threat, report warns", accessed September 14, 2010