How polar bears could survive climate change: US plan takes a hard look

The US Fish and Wildlife service has a plan to save the polar bears as their hunting grounds on Arctic ice rapidly shrink, but will it be enough?

Dan Joling/AP
Ahpun, a female polar bear, strolls around her cage at the Alaska Zoo in Anchorage, Alaska. The US Fish and Wildlife Service released its plan Monday for the recovery of threatened polar bears, emphasizing that the primary threat is climate change, which contributes to the decline in sea ice.

In the final days of the Obama administration, the US Fish and Wildlife service has released a plan to help keep polar bears from going the way of the dodo.

The report stresses that the No. 1 threat to polar bears is climate change, and that without significant action their chances of long term survival at current levels are low. Climate action does not fall under the purview of Fish and Wildlife, however, so they have proposed a number of stopgap measures that may give bear populations the best chance of surviving long enough to see a cooler Arctic.

Listed as a threatened species since 2008, polar bears depend on sea ice for hunting grounds, but because of the rapid pace of Arctic warming those grounds have been shrinking rapidly. Addressing this root problem is ultimately the best way to save the species, the report emphasizes, warning that, "Short of action that effectively addresses the primary cause of diminishing sea ice, it is unlikely that polar bears will be recovered."

When it comes to curbing emissions, however, Fish and Wildlife’s hands are tied. Rather, the new conservation plan focuses on "wildlife management actions within the United States that will contribute to the survival of polar bears in the interim so that they are in a position to recover once Arctic warming has been abated."

Those actions represent a multi-pronged approach aimed at keeping bear numbers as high as possible. Hungry bears unable to hunt are finding their way into human communities more and more often, looking for food. In response to this problem, simple steps can be taken, such as introducing bear-resistant food lockers or controlling where whale-bone piles form.  

Other measures include greater international cooperation, as bears also roam in the northern parts of Canada and Russia, protection of denning areas, minimizing risk from oil spills, and managing local hunting. While President Nixon outlawed trophy hunting decades ago, the US permits Alaskan natives to take bears for subsistence. All told, putting these plans into action would reportedly cost about $13 million per year. 

While combating climate change remains politically challenging, these concrete steps may prove less controversial, particularly since they take into account the views of "a wide range of affected people, including Alaska Natives who hunt polar bears and oil industry representatives whose companies operate in polar-bear habitat," as Yereth Rosen writes for Alaska Dispatch News.

But are such short term measures a credible path to progress? Some research suggests that bears may be more resilient than we often think. Robert F. Rockwell, a population biologist and ecologist with the American Museum of Natural History, believes that bears may be able to expand their diet to include new foods in addition to the usual seals, whales, and walruses.  

"As climate change causes bears in the Hudson Bay region to spend more time on land, what are they doing? So far, the answer is they are opportunistically consuming land-based food, especially exploiting ever-increasing numbers of snow geese and caribou," Rockwell explains in an email to The Christian Science Monitor.

Other experts are skeptical that the bears can adjust to a changing habitat.

"A hungry polar bear isn't going to just lay down and die," Steven Amstrup, the chief scientist with Polar Bear International, told the Monitor in 2015, but "there doesn't appear to be enough food to support the entire polar bear population if sea ice completely melted."

Regardless of whether bears can learn to change their hunting habits, the Fish and Wildlife's plan is a step in the right direction, according to Rockwell.

"Minimizing human-bear conflict is certainly important. Protection needs to be given to their denning areas – including minimizing encroachment by humans," he says. "There is little doubt that an apex predator in a rapidly changing region deserves special protection."

You've read  of  free articles. Subscribe to continue.

Dear Reader,

About a year ago, I happened upon this statement about the Monitor in the Harvard Business Review – under the charming heading of “do things that don’t interest you”:

“Many things that end up” being meaningful, writes social scientist Joseph Grenny, “have come from conference workshops, articles, or online videos that began as a chore and ended with an insight. My work in Kenya, for example, was heavily influenced by a Christian Science Monitor article I had forced myself to read 10 years earlier. Sometimes, we call things ‘boring’ simply because they lie outside the box we are currently in.”

If you were to come up with a punchline to a joke about the Monitor, that would probably be it. We’re seen as being global, fair, insightful, and perhaps a bit too earnest. We’re the bran muffin of journalism.

But you know what? We change lives. And I’m going to argue that we change lives precisely because we force open that too-small box that most human beings think they live in.

The Monitor is a peculiar little publication that’s hard for the world to figure out. We’re run by a church, but we’re not only for church members and we’re not about converting people. We’re known as being fair even as the world becomes as polarized as at any time since the newspaper’s founding in 1908.

We have a mission beyond circulation, we want to bridge divides. We’re about kicking down the door of thought everywhere and saying, “You are bigger and more capable than you realize. And we can prove it.”

If you’re looking for bran muffin journalism, you can subscribe to the Monitor for $15. You’ll get the Monitor Weekly magazine, the Monitor Daily email, and unlimited access to CSMonitor.com.