ANCHORAGE, Alaska— The 9th U.S. Circuit Court of Appeals ruled Tuesday that the U.S. Fish and Wildlife Service must correct legal errors in a regulation that allows oil and gas companies to harass Southern Beaufort Sea polar bears on the North Slope of Alaska.

The rule, called an “incidental take regulation,” allows oil operators to harass and disturb the bears while they’re denning, feeding, hunting, and interacting with other bears, further imperiling a population already threatened by climate change. Trustees for Alaska filed a lawsuit to challenge the regulation in 2021 and in 2023 appealed a lower court ruling.

“If you took all the Beaufort Sea polar bears to an Anchorage Wolverines hockey game, their entire population wouldn't even fill the home-team section since there are fewer than 900 of these polar bears left,” said Nicole Schmitt, executive director of Alaska Wildlife Alliance. “Each bear, especially the sows and cubs, are incredibly important to keeping this population afloat. We are grateful that the court agreed with our findings that Service must provide a scientific explanation to justify this incidental take program and are confident that Fish and Wildlife Service will agree with the science and find this incidental take program is completely unwarranted.”

The Marine Mammal Protection Act prohibits unauthorized harassment of marine mammals like polar bears. A narrow exception allows Fish and Wildlife Service to authorize an unintentional “take” of small numbers of marine mammals for five years or less if it will have a negligible impact on the population.

In Tuesday’s ruling, the appeals court found that the Service is not permitted to invent subcategories of polar bear “take” that cause injuries yet fails to acknowledge injuries could occur.

It also found that the agency failed to evaluate the cumulative harm to polar bears from five years of oil and gas extraction by considering each year in isolation and concluding oil and gas activities would have a negligible impact on the population. This violates the Marine Mammal Protection Act’s plain language, which requires the agency to consider the “total” take that the agency is authorizing.

The court ordered the Service to address these legal issues, but it did not vacate the rule.

“It’s great news that the Ninth Circuit held that Fish and Wildlife Service’s regulations were legally flawed,” said Bridget Psarianos, attorney with Trustees for Alaska. “The agency’s failure to consider the highly probable death and deadly injury to polar bear cubs not only violated the law’s plain language, but it goes against the intent of the MMPA itself. The law’s entire purpose is to protect marine mammals like polar bears from harmful human activities. We will continue doing everything we can to protect polar bears in an already vulnerable population impacted by the climate crisis and industrialization.”

The regulation allows oil and gas companies to harass polar bears while carrying out broad and intensive industrial activities for five years, starting in 2021. Harassment can include scaring bears off with noise, equipment and vehicles, and can compel the animals to delay or stop feeding, hunting, tending young, interacting with other bears, and generally focusing on survival.

For denning cubs, who are weak and need time in their dens with their mothers, this harassment can be fatal. The Fish and Wildlife Service’s own science showed a 95% probability that the North Slope’s oil and gas activities will be lethal to polar bears over the regulation’s five-year period. The Service’s failure to consider this high probability was one of the legal problems the appeals court identified.

The administration issued the regulation after Alaska Oil and Gas Association asked the Fish and Wildlife Service to allow oil and gas operators in Alaska to harass polar bears and walruses along the Beaufort Sea coast and on the North Slope.

The law firm Trustees for Alaska filed the lawsuit on behalf of seven groups and represents five clients in the case: the Alaska Wildlife Alliance, Alaska Wilderness League, Defenders of Wildlife, Environment America, and the Sierra Club, which also represents itself. Trustees is co-counseling with Sierra Club’s Environmental Law Program, and the Center for Biological Diversity, which represents itself and Friends of the Earth.

Group statements:

“We need stronger safeguards to truly protect these highly imperiled polar bears, but at least this ruling forces federal officials to take a closer look at the harm oil and gas extraction inflicts on this magnificent species,” said Julie Teel Simmonds, a senior attorney at the Center for Biological Diversity. “Polar bears already face existential threats from human-caused climate change. The oil industry's direct disruption of their ability to rear cubs in the Arctic pushes polar bears closer to extinction.”

“Today’s decision underscores what we have been saying for years: the Service must be vigilant to ensure the survival and recovery of this iconic and irreplaceable population of polar bears,” said Nicole Whittington-Evans, senior director of Alaska programs for Defenders of Wildlife. “Oil and gas activities are inherently dangerous to polar bears and injuries to this magnificent species as a result are likely inevitable.”

“If Alaska’s polar bears are going to have a chance to survive the climate crisis, the threat posed by oil and gas industrialization in their habitat must be thoughtfully quantified and addressed,” said Andy Moderow, Senior Director of Policy for Alaska Wilderness League. “We are grateful that the court saw errors in the agency’s past analysis, and we look forward to the agency addressing those errors in the months to come, so that a fact-based, protective policy can be implemented for polar bears in America’s Arctic.”

“We are pleased with the court’s decision,” said Hallie Templeton, legal director for Friends of the Earth. “Fish and Wildlife Service is being sent back to the drawing board to recalculate important factors that could make-or-break the struggling polar bear population on the North Slope. We will keep a close watch on the next iteration of these regulations and will keep fighting to ensure that Alaska’s wildlife stands a fighting chance against Big Oil.”

"We need to ensure that polar bears have a future on this planet,” said Steve Blackledge, senior director of conservation campaigns for Environment America. “We're pleased to see a court ruling that recognized flaws in a regulation that gave too much leeway to oil drilling and too few protections for these bears.”

“The court’s decision properly calls the Service out for refusing to consider the extremely high overall probability of lethal injury to newborn cubs from five years of activities like onshore seismic surveys,” said Sierra Club Senior Attorney Karimah Schoenhut. “The Service can’t undermine the stringent requirements of the Marine Mammal Protection Act by segmenting its analysis.”